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@article{DE_1989_25_10_a24, author = {E. A. Larionov}, title = {Properties of root functions of some differential operators}, journal = {Differencialʹnye uravneni\^a}, pages = {1812--1815}, publisher = {mathdoc}, volume = {25}, number = {10}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_10_a24/} }
E. A. Larionov. Properties of root functions of some differential operators. Differencialʹnye uravneniâ, Tome 25 (1989) no. 10, pp. 1812-1815. http://geodesic.mathdoc.fr/item/DE_1989_25_10_a24/