TY  - JOUR
AU  - B. A. Kats
TI  - A boundary-value problem with a nonhomeomorphic shift
JO  - Doklady Akademii Nauk
PY  - 1974
SP  - 781
EP  - 784
VL  - 219
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1974_219_4_a1/
LA  - ru
ID  - DAN_1974_219_4_a1
ER  -