TY  - BOOK
AU  - Nayfeh Ali Hasan
TI  - Introduction to Perturbation Techniques
SN  - 0471310131
SN  - 978-04713
U1  - 515.392NAY 
PY  - 2004///
PB  - John Wiley and Sons
KW  - Perturbation (Mathematics)
KW  - Equations
KW  - Differential equations
KW  - Mathematics
KW  - Numerical solutions
ER  -