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@article{DE_1990_26_2_a25, author = {A. M. Minkin}, title = {Eigenfunction expansion of a class of nonsmooth differential operators}, journal = {Differencialʹnye uravneni\^a}, pages = {356--358}, publisher = {mathdoc}, volume = {26}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_2_a25/} }
A. M. Minkin. Eigenfunction expansion of a class of nonsmooth differential operators. Differencialʹnye uravneniâ, Tome 26 (1990) no. 2, pp. 356-358. http://geodesic.mathdoc.fr/item/DE_1990_26_2_a25/