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@article{DE_1978_14_2_a26, author = {V. I. Filippenko}, title = {On one class of non-selfadjoint differential operators with a discrete spectrum}, journal = {Differencialʹnye uravneni\^a}, pages = {383--384}, publisher = {mathdoc}, volume = {14}, number = {2}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_2_a26/} }
V. I. Filippenko. On one class of non-selfadjoint differential operators with a discrete spectrum. Differencialʹnye uravneniâ, Tome 14 (1978) no. 2, pp. 383-384. http://geodesic.mathdoc.fr/item/DE_1978_14_2_a26/