TY  - BOOK
AU  - Feshchenko, S F, et al.
AU  - 
TI  - Asymptotic methods in the theory of linear differential equations
U1  - 515.35  FES-A 
PY  - 1967///
CY  - American Elsevier Publishing Co., New York
KW  - Differential equations-- Analysis-- Mathematics
ER  -