TY  - BOOK
AU  - Coddington, Earl A
AU  - Levinson, Norman
TI  - Theory of ordinary differential equations
U1  - 517.91 
PY  - 1955///
CY  - Bombay
PB  - Tata McGraw-Hill
KW  - Differential equations
KW  - Functional equations
N1  -  Bibliog. p. 417-422
ER  -