TY  - BOOK
AU  - Nayfeh, Ali Hasan
TI  - Introduction to perturbation techniques
SN  - 0-471-08033-0
PY  - 1981///
CY  - New York
PB  - John Wiley & Sons
KW  - Astronomy and Astrophysics Thesaurus
KW  - Differential Equations
KW  - Mathematics
KW  - Perturbation Techniques
ER  -