TY  - BOOK
AU  - Bender,Carl M.
AU  - Orszag,A.Steven
TI  - Advanced mathematical methods for scientists and engineers: asymptotic methods and perturbation theory 
SN  - 9781441931870
PY  - 2010///
CY  - New York
PB  - Springer
KW  - Engineering mathematics
KW  -  Differential equations
KW  - Numerical solutions
N1  - Includes bibliographical  references and index
ER  -