TY  - JOUR
AU  - G. M. Zhislin
AU  - A. G. Sigalov
TI  - On the mixed spectrum of certain higher-dimensional differential operators of quantum mechanics
JO  - Doklady Akademii Nauk
PY  - 1964
SP  - 1329
EP  - 1331
VL  - 157
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1964_157_6_a17/
LA  - ru
ID  - DAN_1964_157_6_a17
ER  -