TY  - BOOK
AU  - Sanders, J. A
AU  - Verhulst, F
TI  - Averaging methods in nonlinear dynamical systems
T2  - Applied mathematical science
SN  - 0387962298
U1  - 515.355 
PY  - 1985///
CY  - New York
PB  - Springer-Verlag
KW  - Differential equations,nonlinear-numerical solutions
ER  -