TY  - BOOK
AU  - Yoshizawa T
TI  - Stability theory and the existence of periodic solution and almost periodic solutions
U1  - B399N2, L5;1 
PY  - 1975///
CY  - New York    
PB  -  Springer-Verlag        
KW  -  Stability
KW  - Differential equations
N1  - Bibliography 224p
ER  -