TY  - GEN
AU  - Coddington,Earl A
AU  - Levinson, Norman
TI  - Theory of ordinary differential equations
SN  - 9780070992566
U1  - 515.352 
PY  - 2011///, reprint 2013, 2018
CY  - Chennai
PB  - McGraw Hill
KW  - Mathematics
KW  - Differential equations; Boundary value problems; Asymptotic theory; Differential equations, Linear
ER  -