TY  - BOOK
AU  - Chang K W
AU  - Howes F A
TI  - Nonlinear singular perturbation phenomena: theory and applications
U1  - 515.35 
PY  - 1984///
CY  - N Y
PB  - Springer Verlag
KW  - Nonlilnear analysis
KW  - Perturbation techniques
ER  -