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@article{DE_1995_31_6_a18, author = {T. S. Gadzhiev}, title = {On the spectrum of some singular differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1082--1083}, publisher = {mathdoc}, volume = {31}, number = {6}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1995_31_6_a18/} }
T. S. Gadzhiev. On the spectrum of some singular differential equations. Differencialʹnye uravneniâ, Tome 31 (1995) no. 6, pp. 1082-1083. http://geodesic.mathdoc.fr/item/DE_1995_31_6_a18/