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@article{DE_1978_14_5_a22, author = {A. G. Ramm}, title = {Eigenvalues of certain integral operators}, journal = {Differencialʹnye uravneni\^a}, pages = {932--934}, publisher = {mathdoc}, volume = {14}, number = {5}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_5_a22/} }
A. G. Ramm. Eigenvalues of certain integral operators. Differencialʹnye uravneniâ, Tome 14 (1978) no. 5, pp. 932-934. http://geodesic.mathdoc.fr/item/DE_1978_14_5_a22/