TY  - BOOK
AU  - Bellman,Richard
TI  - Perturbation techniques in mathematics, engineering & physics
SN  - 9780486432588 (pbk.)
PY  - 2003///
CY  - Mineola, NY
PB  - Dover Publications
KW  - Perturbation (Mathematics)
N1  - Originally published: New York : Holt, Rinehart and Winston, ©1964 in series: Athena series; selected topics in mathematics; Includes bibliographical references and index
ER  -