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@article{DE_1975_11_11_a7, author = {V. P. Orlov}, title = {Fractional powers of degenerate differential operators}, journal = {Differencialʹnye uravneni\^a}, pages = {1980--1989}, publisher = {mathdoc}, volume = {11}, number = {11}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_11_a7/} }
V. P. Orlov. Fractional powers of degenerate differential operators. Differencialʹnye uravneniâ, Tome 11 (1975) no. 11, pp. 1980-1989. http://geodesic.mathdoc.fr/item/DE_1975_11_11_a7/