TY  - BOOK
AU  - Fucik,S & Kufner,A
ED  - Kufner, A
TI  - Nonlinear differential equations
T2  - Studies in applied mechanics 2
SN  - 0444417583
U1  - 6.06 
PY  - 1980///
CY  - Amsterdam
PB  - Elsevier
ER  -