TY  - JOUR
AU  - A. M. Popov
TI  - Potentiality conditions for differential-difference equations
JO  - Differencialʹnye uravneniâ
PY  - 1998
SP  - 422
EP  - 424
VL  - 34
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1998_34_3_a19/
LA  - ru
ID  - DE_1998_34_3_a19
ER  -