TY  - BOOK
AU  - Sanz, David Bl�zquez
AU  - Morales-Ruiz, Juan, J
AU  - Lombardero, Jesus Rodriguez
TI  - Symmetries and related topics in differential and difference equations: Jairo charris seminar 2009 symmetries differential and difference equations escuela de matematicas, Universidad sergio arboleda, Bogota, Colombia
SN  - 9780821868720
PB  - American mathematical society
ER  -