TY  - BOOK
AU  - Fucik Svatopluk
TI  - Solvability of nonlinear equations and boundary value problems
T2  - Mathematics and its applications; 4
U1  - B33:1, M0 
PY  - 1980///
CY  - Dordrecht
PB  - D Reidel Publishing       
KW  - Differential equations
ER  -