TY  - BOOK
AU  - Shtokalo I Z
TI  - Linear differential equations with variable coeffi
T2  - International Monographs on Advanced Mathematics and Physics
U1  - B333,1, K1 
PY  - 1961///
CY  - Delhi
PB  - Hindustan Publishing         
KW  - Equations
N1  - Bibliography: P  93-100
ER  -