TY  - BOOK
AU  - Hale Jack K
AU  - Hale Jack K
TI  - Oscillations in nonlinear systems
SN  - 9780486673622 (pbk)
U1  - B331:1, K21:Q5 TB 
PY  - 2015///
CY  - New York       
PB  - Dover      
KW  -  Integral manifolds
KW  - Periodic
N1  - Appendix 171-172p.; Bibliography 173-178p.; Index 179-180p
ER  -