TY  - JOUR
AU  - N. A. Lukashevich
TI  - Functions which are definable by a certain system of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 379
EP  - 381
VL  - 5
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_2_a16/
LA  - ru
ID  - DE_1969_5_2_a16
ER  -