TY  - JOUR
AU  - N. V. Grigorenko
TI  - Logarithmic singularities of some classical linear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 1455
EP  - 1457
VL  - 23
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_8_a21/
LA  - ru
ID  - DE_1987_23_8_a21
ER  -