TY  - BOOK
AU  -  Starzhinskii,V.
AU  -  Kisin,V.I.
TI  -  Applied methods in the theory of nonlinear oscillations / 
U1  -  510 STA 
PY  - 1980///
CY  -  Moscow : 
PB  -  MIR, 
KW  -  Mathermatics
N1  -  Revised translated from Russian by V.I.Kisin
ER  -