TY  - JOUR
AU  - G. M. Zhislin
TI  - On the existence of characteristic functions for Schr\"odinger's equation
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 931
EP  - 934
VL  - 117
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_117_6_a1/
LA  - ru
ID  - DAN_1957_117_6_a1
ER  -