TY  - BOOK
AU  - Yoshizawa T
TI  - Stability theory and the existence of periodic solutions and almost periodic solutions
T2  - Applied Mathematical Sciences.14
SN  - 0387901124
U1  - B286, L5 
PY  - 1975///
CY  - New York
PB  - Springer-Verlag         
N1  - Bibliography P 224-31
ER  -