TY  - BOOK
AU  - Petryshyn Wolodymyr V
TI  - Approximation-solvability of nonlinear functional and differential equations
U1  - B43, N3 
PY  - 1993///
CY  - New York    
PB  -  Marcel Dekker       
KW  -  Mappings
KW  -  Topological degree
KW  - Nonlinear functional analysis
ER  -