TY  - JOUR
AU  - I. B. Simonenko
TI  - On the question of the solvability of bisingular and polysingular equations
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1971
SP  - 93
EP  - 94
VL  - 5
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1971_5_1_a18/
LA  - ru
ID  - FAA_1971_5_1_a18
ER  -