TY  - JOUR
AU  - V. N. Pivovarchik
TI  - On the number of eigenvalues of the Sturm--Liouville problem on the semiaxis with a potential that is linear with respect to the parameter
JO  - Differencialʹnye uravneniâ
PY  - 1988
SP  - 705
EP  - 708
VL  - 24
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1988_24_4_a26/
LA  - ru
ID  - DE_1988_24_4_a26
ER  -