TY  - JOUR
AU  - A. V. Bitsadze
AU  - A. A. Samarskii
TI  - Some elementary generalizations of linear elliptic boundary value problems
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 739
EP  - 740
VL  - 185
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_185_4_a1/
LA  - ru
ID  - DAN_1969_185_4_a1
ER  -