TY  - BOOK
AU  - Nayfeh, AH
TI  - Perturbation methods
SN  - 0471399175
U1  - 530.145.7 
PY  - 2004///
CY  - Weinheim
PB  - Wiley-VCH
KW  - PERTURBATION
KW  - PHYSICS-PERTURBATION
N1  - Ref. sec
ER  -