TY  - BOOK
AU  - Mishchenko E F
AU  -  Rozov N Kh
TI  - Differential equations with small parameters and relaxation oscillations
T2  - Mathematical concepts and methods in science and engineering
U1  - B33:1, M0 
PY  - 1980///
CY  - New York    
PB  -  Plenum Press       
KW  - Differential equations
N1  - Bibliography 217-222p
ER  -