Capítulos de Libros en Actas de Congresos
2018
M.L. Gandarias, S. Anco. On Conservation Laws of Generalized KP and Boussinesq Equations in Two Dimensions. Proceedings Symmetry, (Vol: 2(1), Año: 2018, 2(1), Pag: 79). The First International Conference on Symmetry, Barcelona, Spain, 16–18 October 2017.
2017
T. M. Garrido, M.S. Bruzón. Conservation laws for the Barenblatt-Gilman equation and for two special cases of unsteady flow in nanoporous rock. CEDYA+CMA 2017 Proceedings, ISBN: 978-84-44402-1-2 (2017)
T. M. Garrido, R. de la Rosa, E. Recio, M.S. Bruzón. Nonclassical symmetries, potential symmetries and conservation laws of the generalized Drinfeld-Sokolov equations. Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2017. ISBN: 978-84-617-8694-7(2017)
R. de la Rosa, E. Recio, T.M. Garrido, M.S. Bruzón. On a generalized variable-coefficient Gardner equation with forcing term. Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2017. ISBN: 978-84-617-8694-7 (2017)
E. Recio, T.M. Garrido, R. de la Rosa, M.S. Bruzón. Conservation laws and symmetries for a generalized Rosenau-RLW equation. Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2017. (Año: 2017, Pag: 1750-1753) . ISBN: 978-84-617-8694-7 (2017)
A. P. Márquez, M. S. Bruzón, T. M. Garrido, E.Recio. Lie symmetries and Conservation laws for the viscous Cahn-Hilliard equation Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2017. (Año: 2017, Pag: 1370-1373).ISBN: 978-84-617-8694-7 (2017)
M.S. Bruzón, T.M. Garrido, A.P. Márquez, R. de la Rosa. Symmetries and conservation laws for a locally damped fifth-order KdV equation. Libro de comunicaciones Definitivas presentadas en CEDYA+CMA 2017 (Año: 2017, Pag 78-83).
M. L. Gandarias, M. Rosa, E. Recio, S.C. Anco. Conservation laws and symmetries of a generalized Kawahara equation. AIP Conference Proceedings, (Vol: 1836, Año: 2017, Pag: 020072-1 – 020072-6). DOI 10.1063/1.4982012. ISBN 978-0-7354-1506-5
E. Recio, S. C. Anco, M. S. Bruzón. Conservation laws and potential systems for a generalized thin film equation AIP Conference Proceedings, (Vol: 1863, Año: 2017, Pag: 280002-1–280002-4) DOI 10.1063/1.4992433. ISBN 978-0-7354-1538-6
J.C. Camacho, M. Rosa, M.L. Gandarias, M.S. Bruzón. Symmetry analysis for a generalized dissipative Dullin-Gottwald-Holm equation with arbitrary coefficients. Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering. CMMSE 17 (Vol: 2, Pagl: 498-501, Año: 2017). ISBN: 978-84-617-8694-7
M.L. Gandarias, M. Rosa, R. Tracinà. Equivalence transformations and symmetry analysis for a generalized Fisher equation. Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering. CMMSE 17 (Vol: 3, Pag: 892-895, Año: 2017). ISBN: 978-84-617-8694-7
M.S. Bruzón, A.P. Márquez. Conservation laws of one-dimensional strainlimiting viscoelasticity model (2017), AIP Conference Proceedings 1836, 020081; DOI: 10.1063/1.4982021.
M.S Bruzón, I.L. Freire, M.L Gandarias, C.M. Khalique, M. Torrisi, R. Tracinà, R. Preface of the “III Minisymposium on Symmetry Methods and Applications for Differential Equations”. International Conference of Numerical Analysis and Applied Mathematics 2016, ICNAAM 2016. AIP Conference Proceedings (Vol: 1863, Num: 280001, Año:2017). Rhodes, Greece (2017).
2016
T. M. Garrido, A. A. Kasatkin, M. S. Bruzón, R. K. Gazizov. Lie symmetries and equivalence transformations for the Barenblatt-Gilman model. Proceedings of the 16th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2016. ISBN: 978-84-608-6082-2.
M. Rosa, M.L. Gandarias. Symmetry reductions and conservation laws for a type of Fisher equations, Colección: Proceedings of the 16th International Conference on Computational and Mathematical Methods in Science and Engineering.CMMSE 16, (Vol: IV, Pag: 1114-1117, Año: 2016). ISBN 978-84-608-6082-2.
2015
M.S. Bruzón, M.L Gandarias, J. C. Camacho. Classical And Nonclassical Symmetries and Exact Solutions for a Generalized Benjamin Equation. AIMS Mathematics. (Vol: Issue special: November, Año:2015, Pag: 151-158 )
S.C. Anco, E. Recio, M.L. Gandarias, M.S. Bruzón. A nonlinear generalization of the Camassa-Holm equation with peakon solutions. Dynamical Systems, Differential Equations and Applications AIMS Proceedings (2015) 29-37. ISBN: 978-1-60133018-5
M. Rosa, M. S. Bruzón, M.L. Gandarias. A model of malignant gliomas through symmetry reductions. Dynamical Systems. Differential Equations and Applications. AIMS Proceedings 2015.American Institute of Mathematical Sciences. (Pag: 974-980, Año: 2015). ISBN. 978-1-60133-018-5
M. Rosa, M. S. Bruzón, M.L. Gandarias. Symmetry analysis for a mathematical model of malignant gliomas. Proceedings of the XXIV Congress on Differential Equations and Applications/ XIV Congress on Applied Mathematics. Editorial UCA. (Pag: 529-534, Año: 2015). ISBN: 978-84-9828-527-7
M.S Bruzón, I.L. Freire, M.L Gandarias, C.M. Khalique, M. Torrisi, R. Tracinà, R. Preface of the “II Minisymposium on Symmetry Methods and Applications for Differential Equations”. International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015. AIP Conference Proceedings (Vol: 1863, Num: 280001, Año:2015). Rhodes, Greece (2017).
2014
R. de la Rosa, M.L. Gandarias, M.S. Bruzón A study for the Microwave Heating of a Half-Space through Lie symmetries and conservation laws. Proceedings of the International Conference on Computational and Mathematical Methods in Science and Engineering CMMSE 2014. (Vol: 2, Pag: 385-395). ISBN 978-84-616-9216-3. (2014)
R. de la Rosa, M.L. Gandarias, M.S. Bruzón Lie symmetries and reductions of a simplified model for a benign tumour growth. Proceedings of the 10th AIMS Conference on Dynamical Systems, Differential Equations and Applications. (Pag: 290-291). (2014)
M.S. Bruzón, R. de la Rosa. Analysis of the symmetries and conservation laws of a Gardner equation. Proceedings of the International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2014). (Vol: 1648(1), Pag: 430002-1, 430002-4). SBN 978-073541287-3.(2014)
E. Recio, M. L. Gandarias, M. S. Bruzón. Travelling waves solutions for a sixth-order Boussinesq equation. Proceedings of the 2014 International Conference on Computational and Mathematical Methods in Science and Engineering (Vol: IV, Año: 2014, Pag: 1069-1075). ISBN: 978-84-616-9216-3
M. Rosa, M. S. Bruzón, M.L. Gandarias. Nonlinear self-adjointness for a Fisher equation with a variable coefficients. Coección: Proceedings of the 14th International Conference on Computational and Mathematical Methods in Science and Engineering.CMMSE 14 (Vol:4, Pag: 1129-1136, Año : 2014). ISBN. 978-84-616-9216-3
M.L. Gandarias, M. Rosa, M. S. Bruzón. Symmetry Reductions and Exact Solutions of a Generalized Fisher Equation. Interdisciplinary Topics in Applied Mathematics, Modeling and Computational Science, Springer Proceedings in Mathematics & Statistics Springer International Publishing Switzerland. (Vol: 117, Pag: 219-225, Año: 2014). ISBN. 978-3-319-12306-6
M.S. Bruzón. Non-classical symmetries in a mathematical model with dispersive effects. 4ta. Conferencia Iberoamericana en Sistemas, Cibernetica e Informatica, CISCI 2005, Memorias. (Vol: 1, Año: 2014, Pag: 289-294). Orlando, FL; United States (2014).
M.L. Gandarias, M.S. Bruzón. Self-adjointness and conservation laws for a generalized dullin-gottwald-holm equation. Algebra, Geometry and Mathematical Physics Conference, AGMP 2011. (Vol: 85, Año: 2014, Pag: 577-586). Springer Proceedings in Mathematics and Statistics. Mulhouse, France (2014).
M.L. Gandarias, M.V. Redondo, M. S. Bruzón.Some conservation laws for a class of Hamilton-Jacobi-Bellman equations. Algebra, Geometry and Mathematical Physics Conference, AGMP 2011. (Vol: 85, Año: 2014, Pag: 567-576). Springer Proceedings in Mathematics and Statistics. Mulhouse, France (2014).
2013
M.S. Bruzón, M.L. Gandarias. Conservation laws for a Kuramoto-Sivashinsky equationwith dispersive effects. AIP Conference Proceedings, Volume 1562. Nonlinear and Modern Mathematical Physics. Proceedings of the 2nd International Workshop (2013)
M.L. Gandarias, M.S. Bruzón. Nonlinear self-adjointness and conservation laws for a porous medium equation with absorption. AIP Conference Proceedings, Volume 1562. Nonlinear and Modern Mathematical Physics. Proceedings of the 2nd International Workshop (2013)
2012
M.S. Bruzón, M.L. Gandarias. Self-Adjointness and Conservation Laws for a Benjamin- Bona-Mahony Equation. Applied Mathematics in Electrical and Computer Engineering. ISBN: 978-1-61804-064-0 (2012)
M.L. Gandarias, M.S. Bruzón. Self-adjointness and Conservation Laws for a New integrable Equation. Applied Mathematics in Electrical and Computer Engineering. ISBN: 978-1-61804-064-0 (2012)
M.L. Gandarias, M.S. Bruzón. Conservation Laws for a Third Order Equation by Using Free Software MAXIMA. Recent Researches in Engineering Education and Software Engineering. ISBN: 978-1-61804-070-1 (2012)
M.L. Gandarias, M.S. Bruzón. Conservation laws for a family of Benjamin-Bona-Mahony-Burgers equations. IEEE 4th International Conference on Nonlinear Science and Complexity, NSC 2012 – Proceedings 2012, (Num: 6304747, Pag: 155-160). Budapest; Hungary (2012).
M.L. Gandarias, M.S. Bruzón. Nonlinear self-adjointness and conservation laws for some third order equations. IEEE 4th International Conference on Nonlinear Science and Complexity, NSC 2012 – Proceedings 2012, (Num: 6304752, Pag: 189-194). Budapest; Hungary (2012).
M.L Gandarias, M.S Bruzón, M. Torrisi, R. Tracinà, R. Preface of the “Minisymposium on Symmetry Methods and Applications for Differential Equations”. International Conference of Numerical Analysis and Applied Mathematics 2012, ICNAAM 2012. AIP Conference Proceedings (Vol: 1479(1), Año:2012). Kos, Greece (2012).
M.S. Bruzón, M.L. Gandarias, J.C. Camacho, J. Ramírez. Symmetry reductions for a generalized Dullin-Gottwald-Holm equation. International Conference of Numerical Analysis and Applied Mathematics 2012, ICNAAM 2012. AIP Conference Proceedings (Vol: 1479(1), Año:2012, Pages 1365-1368). Kos, Greece (2012).
2011
M.L. Gandarias, M.S. Bruzón. Conservation Laws for Second Order Approximation Equation of KdV Type. XXII CEDYA, XII CMA. Pag: 136. (2011) ISBN: 978-84-694-4935-6
M.S. Bruzón, M.L. Gandarias. Travelling wave Solutions for a Generalized Dullin-Gottwald-Holm Equation. XXII CEDYA, XII CMA. Pag: 138. (2011) ISBN: 978-84-694-4935-6
M.S. Bruzón, M.L. Gandarias. Conservation Laws Of The Self-Adjoint K(M,N) Equation With Generalized Evolution Term. American Institute Of Physics Conference Proceedings (Pag: 1372 – 1375 ) (2011).
M.L. Gandarias, M.S. Bruzón. Symmetries and Conservation Laws for a Subclass of Lubrication Equations by Using Free Software. Recent Researches in Software Engineering, Parallel and Distributed Systems. ISBN: 978-960-474-277-6 (2011)
M.L. Gandarias, M.S. Bruzón. Some Weak Self-Adjoint Forced Kdv Equations. Aip Conferece Proceedings. Vol. 1389 (1378-1381)ISBN: 978-0-7354-0956-9 (2011)
M.S. Bruzón, M.L. Gandarias. Some Travelling Wave Solutions for a Generalized Benjamin-Bona-Mahony-Burgers Equation by Using Maxima Program. Recent Researches in Software Engineering, Parallel and Distributed Systems. ISBN: 978-960-474-277-6 (2011)
M.L. Gandarias, M.S. Bruzón. Conservation Laws for a Subclass of Self-Adjoint Third-Order Equations. Nonlinear Science and Complexity. ISBN: 978-90-481-9883-2 (2011)
M.S. Bruzón, M.L. Gandarias. Nonclassical and Potential Symmetries for a Boussinesq Equation with Nonlinear Dispersion. Nonlinear Science and Complexity. ISBN: 978-90-481-9883-2 (2011)
C. Muriel, J.L. Romero. Conserved Forms of Second-Order Ordinary Differential Equations. Nonlinear Science and Complexity. ISBN: 978-90-481-9883-2 (2011)
M.L Gandarias, M.S Bruzón, M. Torrisi, R. Tracinà, R. Preface of the “Group Methods and Applications for Differential Equations”. International Conference of Numerical Analysis and Applied Mathematics 2011, ICNAAM 2011. AIP Conference Proceedings (Vol: 1389, Page: 1365-1366, Año:2011). Halkidiki, Greece (2011).
2010
C. Muriel, J.L. Romero. On the Lambda-Symmetries of Second-Order Nonlinear Oscillators. Mathematical Physics (2010)
M.L. Gandarias, M.S. Bruzón. Travelling Wave Solutions for a Generalized Boussinesq Equation by Using Free Software. Recent Advances in Software Engineering, Parallel&Distributed Systems. ISBN: 978-960-474-156-4 (2010)
M.S. Bruzón, M.L. Gandarias. Classical and Nonclassical Reductions for the Krichever-Novikov Equation. Numerical Analysis and Applied Mathematics. (2010)
J. Vidal, C. Muriel, M.B. Tejedor. Study of the Dynamic Behavior of the Sancti Petri Channel: an Atypical Case of Tidal Channel. Waves and Stability in Continuous Media (2010)
C. Muriel, J.L. Romero. Lambda-Symmetries on the Derivation of First Integrals of Ordinary Differential Equations. Waves and Stability in Continuous Media (2010)
M.S. Bruzón, M.L. Gandarias. Symmetries Analysis of a Mathematical Model with a Macsyma Program. Recent Advances in Software Engineering, Parallel&Distributed Systems (2010)
M.L. Gandarias, M.S. Bruzón. Symmetry Reductions and Travelling Wave Solutions for a New Integrable Equation. Recent Advances in Applied Mathematics. Harvard University, Cambridge, USA ISBN: 978-960-474-150-2 (2010)
M.S. Bruzón, M.L. Gandarias. Classification of Potential Symmetries of the K(m, n) Equation with Generalized Evolution Term. Recent Advances in Applied Mathematics. Harvard University, Cambridge, USA ISBN: 978-960-474-150-2 (2010)
M.L. Gandarias, M.S. Bruzón. Travelling Wave Solutions for a Generalized Boussinesq Equation by Using Free Software. The 9th WSEAS International Conference on Software Engineering, Parallel and Distributed Systems. Cambridge University, Cambridge, Inglaterra (2010)
M.S. Bruzón, M.L. Gandarias. Symmetries Analysis of a Mathematical Model with a MACSYMA Program. The 9th WSEAS International Conference on Software Engineering, Parallel and Distributed Systems. Cambridge University, Cambridge, Inglaterra (2010)
M.S. Bruzón, M.L. Gandarias. Exact solutions and conservation laws for a new integrable equation. International Conference of Numerical Analysis and Applied Mathematics 2010, ICNAAM 2010. AIP Conference Proceedings (Vol: 1281, Pag: 2256-2259, Año:2010). Rhodes, Greece (2010).
2009
M.S. Bruzón, M.L. Gandarias. Simetrías y Soluciones de la Ecuación de Benney-Lin. XXI Congreso de Ecuaciones Diferenciales y Aplicaciones. XI Congreso de Matemática Aplicada Ciudad Real (2009)
M.L. Gandarias, M.S. Bruzón. Symmetry Reductions and Exact Solutions for the Vakhnenko Equation. XXI Congreso de Ecuaciones Diferenciales y Aplicaciones. XI Congreso de Matemática Aplicada, Ciudad Real (2009)
M.L. Gandarias, M.S. Bruzón. Exact Solutions for a Generalized Ostrovsky Equation. Numerical Analysis and Applied Mathematics, Refhymno, Crete, Greece ISBN 978-0-7354-0705-3 (2009)
M.S. Bruzón, M.L. Gandarias. Travelling Wave Solutions of the K(m,n) Equation with Generalized Evolution. Numerical Analysis and Applied Mathematics, Refhymno, Crete, Greece ISBN 978-0-7354-0705-3. (2009)
J.A. Alvarez, R. Alcántara, M.C. Barrera, M.D. Bellido, S. Bernal, J. Bolívar, M.C. Fernández, M.D. Galindo, M.V. García, J.M. González, M. González, I. González, M. Herrera, M. Jiménez, R. Martín, E. Medina, M.J. Muñoz, J.M. Pintado, A.M. Rodríguez, D. Guillén. Diseño del Título de Grado en Química por la Universidad de Cádiz. Innovación Docente en Química. ISBN: 978-84-92681-07-5 (2009)
2008
C. Muriel, J.L. Romero. Lambda-Symmetries on the Derivation of First Integrals of Ordinary Differential Equations. 15TH Conference on Waves and Stability In Continuous Media (WASCOM) (2008)
M. Galindo, M. García, J. García, M. García, C. García, M. Gordillo, J. Ramírez. La Acción Tutorial en la Facultad de Ciencias de Cádiz: 10 Años de Experiencia. Experiencia Innovación Educativa para la Educación Superiro: Hacia el Proceso de Convergencia (2008)
M.S. Bruzón, M.L. Gandarias. New Exact Solutions for a Benjamin-Bona-Mahony Equation. Recent Advances in System Science and Simulation in Engineering (ICOSSSE’08), Venecia, Italia ISBN: 978-960-474-027-7 (2008)
M.L. Gandarias. On a Procedure for Finding Hidden Potential Symmetries. 15th Conference on Waves and Stability in Continuous Media (WASCOM) 303-309 (2008)
M.S. Bruzón, M.L. Gandarias. Nonclassical and Potential Symmetries for a Boussinesq equation with nonlinear dispersion. Proceedings of the 2nd Conference on Nonlinear Science and Complexity. Oporto, Portugal (2008)
M.S. Bruzón, M.L. Gandarias. Similarity Reductions of a Generalized Double Dispersion Equation. 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen DOI: 10.1002/pamm.200810587. (2008)
M.L. Gandarias, M.S. Bruzón. Symmetry Group Analysis and Similarity Solutions of the CBS Equation in (2+1) Dimensions, 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen DOI: 10.1002/pamm.200810591 (2008)
M.L. Gandarias, M.S. Bruzón. Travelling Wave Solutions for a CBS Equation in 2 + 1 Dimensions. Mathematics And Computers In Science And Engineering. Proceedings of the American Conference on Applied Mathematics, Cambridge, Massachusetts, 153-158 ISBN: 978-960-6766-47-3 (2008)
M.L. Gandarias, M.S. Bruzón. Nonclassical Potential System Approach for a Nonlinear Diffusion Equation . Nonlinear Evolution Equations and Dynamical Systems (Needs) Atlantis Press ISBN 978-90-78677-16-1 (2008)
C. Muriel, J.L. Romero. Conserved Forms Derived from Lambda-Symmetries. Pamm. Proc. Appl. Math. Mech. 8 10747 – 10748. . ISSN 1617-7061 (2008)
C. Muriel, J. L. Romero. Conserved Forms of Second-Order Equations 2nd Conference on Nonlinear Science and Complexity (NSC) (2008)
2007
M.S. Bruzón, J.C. Camacho, M.L. Gandarias. Simetrías Potenciales de un Modelo Matemático que Describe las Vibraciones de una Viga Actas del Cedya 07. (2007)
M.S. Bruzón, M.L. Gandarias, J.C. Camacho. Symmetry Analysis and Solutions for a Family of BBM Equations. Nonlinear Evolution Equations and Dynamical Systems. (Needs) Atlantis Press ISBN 978-90-78677-16-1 (2007)
M.S. Bruzón, M.L. Gandarias, J.C. Camacho. Similarity Reductions of a Nonlinear Model for Vibrations of Beams. Sixth International Congress on Industrial Applied Mathematics and GAMM Annual Meeting, Zürich, 2040063-2040064, DOI: 10.1002/pamm.200700743. (2007)
M.L. Gandarias, M.S. Bruzón. Symmetry Analysis for a Thin Film Type Equations 6th International Congress on Industrial And Applied Mathematics. 6th International Congress on Industrial and Applied Mathematics, DOI: 10.1002/pamm.200700408. (2007)
C. Muriel, J.L. Romero. Integrability of Equations Admitting Nonlocal Symmetries. Nonlinear Evolution Equations and Dynamical Systems (Needs) 300-309, ISBN: 978-90-78677-16-1 (2007)
M.S. Bruzón, M.L. Gandarias. Applying a New Algorithm to Derive nonclassical Symmetries. Nonlinear Science and Complexity. (2007)
M.L. Gandarias, M.S. Bruzón. Symmetry Reduction for an Inhomogeneous Nonlinear Diffusion. Nonlinear Science and Complexity. (2007)
J. Arellano, M. Barrera, I. Caro, R. Castro, M. Galindo, J. García, J. García, M. González, F. Guerra, B. López, M. Martínez, E. Pando, M. Pérez, J. Pinto, M. Portela, J. Ramírez, L. Romero, C. Wagner. Análisis de las estrategias Metodológicas Universitarias en el Ámbito de los EEES. Actividades de los Grupos de Formación del Profesorado de la Universidad de Cádiz 2005-2006. (2007)
J. García, J. Arellano, M. Barrera, I. Caro, R. Castro, M. Galindo, M. González, F. Guerra, B. López, C. Mendiguchía, E. Pando, M. Pérez, J. Pinto, J. Ramírez, L. Romero, C. Wagner. Análisis de las Estrategias Metodológicas Universitarias en el Ámbito del EEES: Aprendizaje Colaborativo Mediante la Técnica del Puzzle. innovación Docente en Química.(2007)
2006
M.L. Gandarias, S. Sáez. Nonclassical Symmetry Reductions of the Caloguero-Degasperisfokas Equations in (2+1) Dimensions. 13TH Conference on Waves and Stability In Continuous Media (WASCOM) (2006)
M.S. Bruzón, M.A. Bruzón. Soluciones Analíticas de un Modelo Matemático que Describe el Crecimiento de un Tumor Benigno en Peces. 5ª Conferencia Iberoamerica en Sistemas, Cibernética e Informática. Orlando, USA (2006)
M.A. Bruzón, M.S. Bruzón. Comportamiento Reproductivo en el Medio Natural y en Cautividad de Pagellus Bogaraveo. Modelos de crecimiento. 5ª Conferencia Iberoamerica en Sistemas, Cibernética e Informática. Orlando, USA (2006)
J. Vidal, C. Muriel, M.S. Bruzón. Estudio de una Línea de Fondeo Oceanográfico en el Estrecho de Gibraltar. 5ª Conferencia Iberoamerica en Sistemas, Cibernética e Informática. Orlando, USA (2006)
2000
M.L Gandarias. E.B. Medina. Symmetry reductions of fourth-order nonlinear diffusion equations lubrication model and some generalizations. Proceedings of the workshop on nonlinearity integrability and all that twenty years after needs’79. (Pag:267-274). World scientific publishing company (Singapore, Singapur). ISBN: 981-02-4147-x. (2000)