Literatura académica sobre el tema "Solvolisi"
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Artículos de revistas sobre el tema "Solvolisi"
Kevill, Dennis N., Jong Chul Kim y Jin Burm Kyong. "Correlation of the Rates of Solvolysis of Methyl Chloroformate with Solvent Properties". Journal of Chemical Research 23, n.º 2 (febrero de 1999): 150–51. http://dx.doi.org/10.1177/174751989902300242.
Texto completoKašpárek, František, Kamila Vavčíková, Jiří Mollin y Aleš Husek. "Steric effects in alkaline solvolysis of diaryl anilidophosphates". Collection of Czechoslovak Chemical Communications 55, n.º 7 (1990): 1769–76. http://dx.doi.org/10.1135/cccc19901769.
Texto completoD'Souza, Malcolm J., Anthony M. Darrington y Dennis N. Kevill. "On the Importance of the Aromatic Ring Parameter in Studies of the Solvolyses of Cinnamyl and Cinnamoyl Halides". Organic Chemistry International 2010 (29 de junio de 2010): 1–9. http://dx.doi.org/10.1155/2010/130506.
Texto completoKumaniaev, Ivan, Elena Subbotina, Maxim V. Galkin, Pemikar Srifa, Susanna Monti, Isara Mongkolpichayarak, Duangamol Nuntasri Tungasmita y Joseph S. M. Samec. "A combination of experimental and computational methods to study the reactions during a Lignin-First approach". Pure and Applied Chemistry 92, n.º 4 (28 de abril de 2020): 631–39. http://dx.doi.org/10.1515/pac-2019-1002.
Texto completoPark, Kyoung Ho, Mi Hye Seong, Jin Burm Kyong y Dennis N. Kevill. "Rate and Product Studies with 1-Adamantyl Chlorothioformate under Solvolytic Conditions". International Journal of Molecular Sciences 22, n.º 14 (9 de julio de 2021): 7394. http://dx.doi.org/10.3390/ijms22147394.
Texto completoPytela, Oldřich, Stanislava Štumrová, Miroslav Ludwig y Miroslav Večeřa. "Kinetic acidity function and solvolysis of 3-hydroxy-1,3-diphenyltriazenes". Collection of Czechoslovak Chemical Communications 51, n.º 3 (1986): 564–72. http://dx.doi.org/10.1135/cccc19860564.
Texto completoD’Souza, Malcolm J., Jeremy Wirick, Osama Mahmoud, Dennis N. Kevill y Jin Burm Kyong. "The Influence of a Terminal Chlorine Substituent on the Kinetics and the Mechanism of the Solvolyses of n-Alkyl Chloroformates in Hydroxylic Solvents". International Journal of Molecular Sciences 21, n.º 12 (19 de junio de 2020): 4387. http://dx.doi.org/10.3390/ijms21124387.
Texto completoD’Souza, Malcolm J., Zoon Ha Ryu, Byoung-Chun Park y Dennis N. Kevill. "Correlation of the rates of solvolysis of acetyl chloride and α-substituted derivatives". Canadian Journal of Chemistry 86, n.º 5 (1 de mayo de 2008): 359–67. http://dx.doi.org/10.1139/v08-028.
Texto completoConner, John K., Johanna Haider, MN Stuart Hill, Howard Maskill y Monique Pestman. "The mechanism of solvolysis of 2-adamantyl azoxytosylate: isotopic labelling, medium effect, and attempted deoxygenation studies". Canadian Journal of Chemistry 76, n.º 6 (1 de junio de 1998): 862–68. http://dx.doi.org/10.1139/v98-071.
Texto completoOmura, Kanji. "Solvolysis of 4-Halogeno-4-Alkyl-2,6-di-tert-butylcyclohexa-2,5-dienones Induced by Positive Halogen Donors as Electrophiles". Australian Journal of Chemistry 66, n.º 11 (2013): 1386. http://dx.doi.org/10.1071/ch13257.
Texto completoTesis sobre el tema "Solvolisi"
Bolognesi, Simona. "Studio di un processo di riciclo di materiali polistirenici mediante solvolisi". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16218/.
Texto completoHenry, Lucile. "Étude et développement d'un procédé propre et innovant de traitement de la surface de fibres céramiques en conditions hydrothermales". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0328.
Texto completoThis thesis project was carried out in order to develop a hydrothermal processfor the surface treatment of ceramic fibres which are integrated into the fabrication of ceramicmatrix composites (CMCs). A conventional process was developed by Safran Ceramics tomodify the surface chemistry of the Nicalon fibres following 3 steps. The main step consistsin dissolving the oxidised phases at the fibre surface by the use of strong acids. As aconsequence, the chemical homogeneity of the surface is enhanced and a microporouscarbon film is generated helping its compatibilization with the pyrocarbon interphase that isdeposited in between the fibres and the matrix. It was suggested to substitute thisconventional process by a hydrothermal treatment. Indeed, as water displays tunablephysico-chemical properties regarding the temperature and pressure conditions, it waspossible to recover fibres demonstrating reproducible and similar characteristics. Theefficiency and competitivity of the hydrothermal treatment have been assessed throughoptimised surface properties obtained after one single step. Next, the mechanisminvestigation revealed a selective attack of the Si atoms contained in the fibre via hydrolysisreactions. Then, the thermodynamic study pointed out the fact that the process wasdominated by a kinetic regim. Finally, the mechanical caracterisation of the CMCs made ofhydrothermal treated fibres showed results which met all the requirements. These finalobservations allowed us to complete the qualification of the hydrothermal process to treat thesurface of Nicalon fibres
Khiari, Karim. "Contribution à l'étude des propriétés thermo-physiques des biocarburants de seconde génération et leur influence sur le comportement des moteurs". Thesis, Nantes, Ecole des Mines, 2016. http://www.theses.fr/2016EMNA0314/document.
Texto completoThe world economic and industrial growths, as well as the demographic rapid progression, have increased the fossil energy demand. These last years, much of researches were directed towards new energy resources which can replace the conventional fossil fuels. The biofuels are renewable ecological fuels derived from biomass; they are classified as an ideal resource, non-toxic and renewable component with respect to the conventional Diesel. In this context, we were firstly interested to the production of the biofuels starting from a non-edible vegetable source widely available in the Mediterranean basin which is the Pistacia Lentiscus using two processes. The first one is a chemical method named “transesterification” and the second one is a thermochemical procedure called “solvolysis”. The biofuels physicochemical properties, measured via standard methods, are similar to those of Diesel fuel. A single cylinder, naturally aspirated DI Diesel engine is operated at 1500 rpm with either pure produced biofuels or their blends with Diesel fuel for several ratios (50, 30 and 5 v%) and engine load conditions. The combustion parameters, their blends are compared with those of Diesel fuel
Chaabani, Chayma. "Composites à fibres de carbone : récupération des fibres par solvolyse hydrothermale. Impact sur la qualité des fibres et valorisation de la phase liquide". Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2017. http://www.theses.fr/2017EMAC0011/document.
Texto completoThe global demand of carbon fibers reinforced composites increases greatly, resulting in an increase of its residues. The solvolysis process has been studied in the framework of the recycling of carbon fibers and the recovery of the resin decomposed in the liquid phase. First, the study focuses on the impact of the batch process (temperature and reaction time) on the resin removal under subcritical and supercritical water. Although the batch process is not limited by the water diffusion into the composite bed, a large amount of organics results in a repolymerization phenomenon. The optimal conditions (350 °C, 30 min and 400 °C, 15 min) led to achieve the PA6 resin removal and the mechanical properties of recovered carbon fibers are similar to the virgin ones. The X-ray diffraction patterns show a modification of the inter-reticular distances of the graphene stacks, and Raman spectroscopy analysis reveal a modification in the turbostratic structure. Therefore nanostructural changes have occurred due to solvolysis process. Tensile strength values are quite similar to those of the virgin fibers, thus the fibers can be reused in the reformulation of new composites. Finally, the kinetic study based on the values of activation energy in subcritical water (77.79 kJ / mol) and in supercritical water (78.51 kJ / mol) shows that the same mechanistic scheme is governing the resin depolymerization reaction. The composition of the liquid phase shows the recovery of 70 % the monomer (caprolactam) and the production of heavier products in long reaction times (>45min). This has been explained by a repolymerization phenomenon. The use of CeO2 was efficient to limit undesirable reactions and to improve the conversion of the PA6 resin into its monomer in short reaction times
Ould, Amara Salem. "Matériaux à base de bore pour des applications énergies". Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTT180/document.
Texto completoThe present work is structured around boron-based materials expected to be used in the field of “energy”. We especially worked on two types of materials. (i) With the first type, solid-state hydrogen storage was targeted. Hydrazine borane N2H4BH3 was used as precursor of novel derivatives obtained by mechanosynthesis. We first made it react with lithium amide LiNH2 to obtain LiN2H3BH3.0,25NH3. Then, we considered calcium hydride CaH2; it reacted with N2H4BH3 at 67°C (after ball-milling) to form a new phase, calcium hydrazinidoborane of formula Ca(N2H3BH3)2. (ii) The second type of boron-based materials we investigated is about anionic polyboranes. They are known to be stable in aqueous solution and accordingly could be used as anodic fuel of direct liquid-fed fuel cell. We aimed at synthesizing and fully characterizing two salts: sodium closo-decaborane Na2B10H10 and sodium 1-oxa-nido-dodecaborate NaB11H12O. Their potential for the aforementioned application was tested by cyclic voltammetry by using bulk electrodes of platinum, silver and gold. All of our results are presented, discussed in detail and put into perspective in the present thesis
Sebhat, Woldemichael. "Valorisation de la lignine par catalyse hétérogène en condition sous-critique en milieux aqueux et eau/alcool". Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10273/document.
Texto completoLignin is a macromolecule comprising lignocellulosic biomass, and is composed of propylphenyl units. Lignin is produced in large amounts by the paper industry when cellulose is isolated from biomass. Currently, its value is largely limited to source of energy and heat in recovery boilers. Nonetheless lignin can be an alternative source of aromatics if depolymerized effectively. The present work focuses on the transformation of lignin into aromatic building blocks using sub-critical water and mixtures of water/alcohols (225°C and 40-80 bar). Preliminary studies were carried out in a batch reactor; water was used as a solvent for the conversion of a Kraft lignin in the presence of catalysts (Pt, Pd, Ru on Al2O3, TiO2, ZrO2). The Pd/ZrO2 catalyst gave the highest yield of identified phenols with 2% in 3 hours. To improve the conversion of the lignin by minimizing condensation reactions between phenolic units, the water was replaced with a mixture water/alcohol (ethanol, methanol, isopropanol). The combination water/isopropanol without catalyst allowed us to increase the yield of identified phenols to 5%. The results obtained in batch reactor were extrapolated to a trickle-bed reactor. Even though the water/isopropanol mixture gave the best results in batch reactor, the implementation on a continuous reactor proved to be complex (formation of solids clogging the reactor). The use of a water/ethanol mixture prevented this problem and a yield in guaiacol of up to 1 % was obtained. Ethanol helps stabilize unstable building blocks by alkylation and esterification. This is evidenced by the NMR and chromatographic analysis
Martinelli, Andrea. "Studio di reazioni ed approcci sintetici innovativi per la sintesi di intermedi di interesse industriale". Doctoral thesis, Università degli studi di Trieste, 2014. http://hdl.handle.net/10077/10128.
Texto completoIn questo lavoro di tesi sono state affrontati due temi principali: la risoluzione di diastereoisomeri intermedi nella sintesi della Dorzolamide e lo studio su reazioni di addizione di Michael stereoselettive su substrati chetonici a,b-insaturi con nucleofili allo zolfo. Il primo progetto si è focalizzato sull'impiego di una risoluzione cinetica dinamica per convertire due alcoli diastereomerici in un unico prodotto acilato tramite la combinazione di una reazione di acilazione promossa da enzimi (CALB e subtilisina) ed un catalizzatore di Ru in grado di epimerizzare tra loro gli alcoli. Ulteriori studi hanno permesso di indagare maggiormente su reazioni di solvolisi sui medesimi substrati che hanno permesso di ottenere il prodotto desiderato in ottima resa chimica ed eccesso enantiomerico. Il secondo progretto si è focalizzato sull'impiego di alcuni alcaloidi della Cinchona e su corrispondenti derivati tioureidici in reazioni di Michael stereoselettive. I substrati impiegati sono stati il trans-calcone ed il 2-cicloesen-1-one; nucleofili allo solfo sono stati il benziltiolo ed il tiofenolo. I tisultati ottenuti hanno permesso di verificare l'efficacia dei catalizzatori tioureidici sulle reazioni modello studiate.
XXVI Ciclo
1984
Lima, Carmen de. "Solvolise de tosilatos de 1-aril-2,2,2-trialogenoetila". reponame:Repositório Institucional da UFSC, 1988. http://repositorio.ufsc.br/xmlui/handle/123456789/75464.
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A solvólise dos tosilatos de 2,2,2-tricloro-1-(4-metoxifenil)etanol, 2,2,2-tricloro-1-(4-metoxifenil)etanol, 2,2,2-tricloro-1-(4-metilfenil)etanol e 2,2,2-tricloro-1-(fenil)etanol foi estudada a diversas temperaturas em vários solventes polares (etanol-água, metanol-água, metanol, etanol, trifluoroetanol, ácido fórmico e ácido acético). Os dados cinéticos indicam que os tosilatos triclorados se solvolisam por um mecanismo essencialmente kc, embora com alguma possível assistência do solvente. No caso dos tosilatos tribromados, cuja solvólise é mais fácil que para os análogos triclorados, propõe-se um mecanismo solvolítico com a assistência dos átomos de bromo.
Schaller, Heike. "Changes in Solvolysis Mechanisms". Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-91684.
Texto completoWilhelm, Catherine. "Solvolyse de charbons et de leurs macéraux". Metz, 1990. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1990/Wilhem_Lacordaire.Catherine.SMZ9015.pdf.
Texto completoThe solvolysis of coals represent an important way to access to coal structure, in relation to his utilization in carbonization, liquefaction or gazeification. The aim of our work was locussed on coal solvolysis and characterization of the solvolysis products obtained from coals and macerals. The N-methyl 2 Pyrrolidinone (NMP) extraction, which is a physical process of solvolysis and the solubilization by the mixture methanol/sodium hydroxide (MeOH/NaOH) were realized to study the molecular structure of coal. Coal was considered in the frame of this study, as a three-dimensional crosslinked network or "macromolecular phase" (MM), which trapped free molecules that are not covalenty bonded to the network and constituated the molecular phase (M). The comparison of the results of the extraction and the characterization of coals, macerals and extracted products by spectroscopic methods (FT/IR, Solid state 13C NMR and EPR) allowed us to consider the notion of molecular structure rather than the maceral one to explain the behaviour of coals during solvolysis. A complementary analysis by thermic methods coupled to mass spectrometry (TD GC/MS, Py-FIMS) of solvolysis products permitted us to suggest that a part of the molecular phase is not extractable by solvents and stays linked to macromolecular phase. Therefore, the hypothesis of a "two-components" structure represents a simplified model. At last, the influence of the two phases "molecular M and macromolecular MM" on optical properties of cokes obtained by carbonization of coals and extracted products was studied. We have proved by the study with Transmission Electronic Microscopy TEM the important role of the composition determined by fractionation (sonication US and extrography EX) of the NMP extractible phase on the thermal behaviour of coals
Libros sobre el tema "Solvolisi"
Phanstiel, Otto. The effect of a single fluorine substituent on the [1,5] homodienyl hydrogen shift, the solvolytic ring-opening of bromocyclopropane, and the [1,3] carbon shift of 6-methylenebicyclo[3.2.0]hept-2-ene. 1988.
Buscar texto completo(undifferentiated), William H. Brown. Studying the Kinetics of Te Solvolysis of 2 Chloro 2 Methylpropane (Medular Laboratory Program in Chemistry). Chemical Education Resources, 1993.
Buscar texto completoCapítulos de libros sobre el tema "Solvolisi"
Xanthos, M. y S. H. Patel. "Solvolysis". En Frontiers in the Science and Technology of Polymer Recycling, 425–36. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1626-0_20.
Texto completoBlandamer, Michael J., John M. W. Scott y Ross E. Robertson. "Solvolysis Revisited". En Progress in Physical Organic Chemistry, 149–96. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470171943.ch3.
Texto completoRobertson, R. E. "Solvolysis in Water". En Progress in Physical Organic Chemistry, 213–80. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470171837.ch5.
Texto completoElamin, A., S. Rezzoug, R. Capart y M. Gelus. "Solvolysis and Catalytic Hydrotreatment of Wood". En Advances in Thermochemical Biomass Conversion, 1415–23. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1336-6_111.
Texto completoBouvier, J. M., M. Gelus y S. Maugendre. "Direct Liquefaction of Wood by Solvolysis". En ACS Symposium Series, 129–38. Washington, DC: American Chemical Society, 1988. http://dx.doi.org/10.1021/bk-1988-0376.ch013.
Texto completoHirose, Shigeo, Shoichiro Yano, Tatsuko Hatakeyama y Hyoe Hatakeyama. "Heat-Resistant Polyurethanes from Solvolysis Lignin". En ACS Symposium Series, 382–89. Washington, DC: American Chemical Society, 1989. http://dx.doi.org/10.1021/bk-1989-0397.ch029.
Texto completoAllen, Annette D., V. M. Kanagsabapathy y Thomas T. Tidwell. "Solvolysis of Electron-Deficient 1-Arylethyl Tosylates". En Advances in Chemistry, 315–28. Washington, DC: American Chemical Society, 1987. http://dx.doi.org/10.1021/ba-1987-0215.ch022.
Texto completoGallego, Mar Gómez y Miguel A. Sierra. "Level 3 - Case 35 Solvolysis of Vinyl Iodonium Salts". En Organic Reaction Mechanisms, 231–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_35.
Texto completoGallego, Mar Gómez y Miguel A. Sierra. "Level 3 - Case 40 Solvolysis of 8-Deltacyclyl Brosylates". En Organic Reaction Mechanisms, 269–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_40.
Texto completoGallego, Mar Gómez y Miguel A. Sierra. "Level 1 — Case 9 Solvolysis of Electron-Deficient Norbornyl Triflates". En Organic Reaction Mechanisms, 55–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_9.
Texto completoActas de conferencias sobre el tema "Solvolisi"
Oliveux, Géraldine, Eric Le Gal La Salle, Jean-Luc Bailleul, Francisco Chinesta, Yvan Chastel y Mohamed El Mansori. "Recycling By Solvolysis Thermosetting Composite Materials Of Sustainable Surface Transport". En INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (AMPT2010). AIP, 2011. http://dx.doi.org/10.1063/1.3552442.
Texto completoSloan, I., S. Romero, S. Ford y K. Kooduvalli. "Embodied Energy of Pyrolysis and Solvolysis Processes for Recycling Carbon Fiber Reinforced Polymer Waste". En SAMPE 2020 | Virtual Series. NA SAMPE, 2020. http://dx.doi.org/10.33599/382/s.20.0371.
Texto completoSloan, I., S. Romero, S. Ford y K. Kooduvalli. "Embodied Energy of Pyrolysis and Solvolysis Processes for Recycling Carbon Fiber Reinforced Polymer Waste". En SAMPE 2020 | Virtual Series. NA SAMPE, 2020. http://dx.doi.org/10.33599/s.20.0371.
Texto completoSloan, I., S. Romero, S. Ford y K. Kooduvalli. "Embodied Energy of Pyrolysis and Solvolysis Processes for Recycling Carbon Fiber Reinforced Polymer Waste". En SAMPE 2020 | Virtual Series. NA SAMPE, 2020. http://dx.doi.org/10.33599/nasampe/s.20.0371.
Texto completoSingh, A. K. "Kinetics of Acid Catalyzed Solvolysis of Amyl Methanoate Formate in Water-ethylene Glycol (EG) Solvent". En 2020 9th International Conference System Modeling and Advancement in Research Trends (SMART). IEEE, 2020. http://dx.doi.org/10.1109/smart50582.2020.9337122.
Texto completoKuznetsov, Peter, Budeebazar Avid, Lyudmila Kuznetsova, Barnazan Purevsuren, Xing Fan, Zinfer Ismagilov y Vladimir Safin. "Thermal Solvolysis of Coals Under Mild Conditions as an Alternative Way to Produce Aromatics for Carbon Materials". En 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/ahcps.k.211004.015.
Texto completoSingh, Anil Kr. "Kinetics Investigation of Solvent Polarity on Reaction Rate for Solvolysis of Ethyl Caprylate Ester in Binary Solvent System". En 2021 10th International Conference on System Modeling & Advancement in Research Trends (SMART). IEEE, 2021. http://dx.doi.org/10.1109/smart52563.2021.9676306.
Texto completoPompidou, Stéphane, Marion Prinçaud, Nicolas Perry y Dimitri Leray. "Recycling of Carbon Fiber: Identification of Bases for a Synergy Between Recyclers and Designers". En ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82106.
Texto completoInformes sobre el tema "Solvolisi"
Braun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Fort Belvoir, VA: Defense Technical Information Center, enero de 1986. http://dx.doi.org/10.21236/ada191248.
Texto completoBraun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Fort Belvoir, VA: Defense Technical Information Center, agosto de 1985. http://dx.doi.org/10.21236/ada191250.
Texto completoBraun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Fort Belvoir, VA: Defense Technical Information Center, enero de 1987. http://dx.doi.org/10.21236/ada191251.
Texto completoBraun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Fort Belvoir, VA: Defense Technical Information Center, octubre de 1987. http://dx.doi.org/10.21236/ada191252.
Texto completoEliel, Ernest L. Neighboring Group Participation in Solvolysis of Organosulfur and Related Compounds. Fort Belvoir, VA: Defense Technical Information Center, agosto de 1985. http://dx.doi.org/10.21236/ada161458.
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