@article{1364706,
      author = {Charris Castañeda, Jairo A., and Blázquez-Sanz, David,  and Morales Ruiz, Juan J. and Lombardero, Jesús  Rodríguez,},
      url = {http://library.usi.edu/record/1364706},
      title = {Symmetries and related topics in differential and  difference equations : Jairo Charris Seminar 2009,  Symmetries of Differential and Difference Equations,  Escuela de Matemáticas, Universidad Sergio Arboleda,  Bogotá, Colombia /. Jairo Charris Seminar},
      recid = {1364706},
      pages = {1 online resource (178 pages) :},
}