TY  - BOOK
AU  - GIACAGLIA, G E O
TI  - Perturbation Methods in Non-Linear Systems
U1  - B33 
PY  - 1972///
CY  - Newyork
PB  - Springer -Verlag
KW  -  PERTURBATION METHODS IN NON-LINEAR SYSTEMS
KW  - MATHEMATICS
ER  -