TY  - BOOK
AU  - Put Marius van der
AU  - Singer Michael F
TI  - Galois theory of difference equations
SN  - 3-540-63243-3
U1  - 512.3 
PY  - 1997///
CY  - Berlin
PB  - Springer-Verlag
KW  - Galois theory
ER  -