TY  - JOUR
AU  - A. L. Teptin
TI  - On the sign of the Green function of a difference boundary value problem
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 2283
EP  - 2286
VL  - 17
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_12_a20/
LA  - ru
ID  - DE_1981_17_12_a20
ER  -