TY  - BOOK
AU  - Guckenheimer John
AU  -  Holmes Philip
TI  - Nonlinear oscillations dynamical systems and bifur
T2  - Applied Mathematical Sciences. 42
U1  - B32, M3 
PY  - 1983///
CY  - New York
PB  - Springer Verlag        
KW  - Calculus
N1  - Bibliography: P 423-426
ER  -