TY  - GEN
AU  - Biler, Piotr
AU  - Nadzieja, Tadeusz
TI  - Problems and examples in differential equations
SN  - 0824786378
U1  - 515.35 
PY  - 1992///
CY  - New York
PB  - Marcel Dekker
KW  - Differential equations
ER  -