TY  - JOUR
AU  - I. N. Astaf'eva
AU  - V. I. Malovikov
TI  - Second solutions of equations involving positive operators in degenerate cases
JO  - Matematičeskie zametki
PY  - 1971
SP  - 143
EP  - 149
VL  - 9
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1971_9_2_a4/
LA  - ru
ID  - MZM_1971_9_2_a4
ER  -