TY  - BOOK
AU  - Rouche N
AU  -  Mawhin J
TI  - Ordinary differential equations:  Stability and per   
T2  - Surveys and Reference Works in Mathematics 5
U1  - B331, M0 
PY  - 1980///
CY  - London
PB  - Pitman          
KW  - Equations
N1  - Bibliography:  P 233-250
ER  -