TY  - BOOK
AU  - 
AU  - Levi, Decio, Ed.
TI  - Symmetries and integrability of difference equations
SN  - 9780521136587
U1  - 515.625 
PY  - 2011///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Difference euations
KW  - Symmetry (Mathematics)
KW  - Integrals
ER  -