TY  - JOUR
AU  - A. V. Aizenshtat
TI  - On singular integral equations on a countable set of closed curves, each enclosed within another
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 985
EP  - 988
VL  - 232
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_232_5_a0/
LA  - ru
ID  - DAN_1977_232_5_a0
ER  -