TY  - BOOK
AU  - Hale,Jack K..
TI  - Oscillations in nonlinear systems / 
T2  - McGraw-Hill series in advanced mathematics with applications, 
SN  - 0486673626
U1  - 515.355 
PY  - 1992///
CY  - New York : 
PB  - Dover Publications , 
KW  - NONLINEAR OSCILLATIONS
N1  - NULL
ER  -