TY  - JOUR
AU  - M. M. Gekhtman
AU  - I. V. Stankevich
TI  - Investigation of spectral characteristics of some Sturm--Liouville operators used in crystal theory
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 2269
EP  - 2270
VL  - 17
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_12_a15/
LA  - ru
ID  - DE_1981_17_12_a15
ER  -