%0 Journal Article %A V. N. Pivovarchik %T On the number of eigenvalues of the Sturm--Liouville problem on the semiaxis with a potential that is linear with respect to the parameter %J Differencialʹnye uravneniâ %D 1988 %P 705-708 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1988_24_4_a26/ %G ru %F DE_1988_24_4_a26