@article{DE_1996_32_5_a19,
     author = {V. G. Palyutkin},
     title = {Distribution of the eigenvalues of the {Sturm--Liouville} problem on the half-line with complex-valued potential},
     journal = {Differencialʹnye uravneni\^a},
     pages = {708--710},
     publisher = {mathdoc},
     volume = {32},
     number = {5},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_5_a19/}
}