TY  - BOOK
AU  - Petryshyn, Wolodymyr V
TI  - Approximation-solvability of nonlinear functional and differential equations
SN  - 9780824787936
U1  - 515.7 PET 
PY  - 1993///
CY  - New York
PB  - Marcel Dekker
KW  - Mappings (Mathematics)
ER  -