TY  - JOUR
AU  - V. I. Paškovskii
TI  - Connected partial differential operators and boundary value problems
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 757
EP  - 760
VL  - 9
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_4_a23/
LA  - ru
ID  - DE_1973_9_4_a23
ER  -