TY  - BOOK
AU  - Kelley Walter G
AU  -  Peterson Allan C
TI  - Difference equations: an introduction with applications
SN  - 813120233X (pbk)
U1  - B33, P4   TB 
PY  - 2004///
CY  - San Diego
PB  - Academic Press       
KW  -  Linear difference equations
KW  -  Partial difference equations
KW  - Differences calculus
N1  - Appendix 367-371p
ER  -