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@article{DE_1989_25_3_a11, author = {L. I. Kamynin}, title = {Smoothness of parabolic {Pagni} potentials. {I}}, journal = {Differencialʹnye uravneni\^a}, pages = {477--490}, publisher = {mathdoc}, volume = {25}, number = {3}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_3_a11/} }
L. I. Kamynin. Smoothness of parabolic Pagni potentials. I. Differencialʹnye uravneniâ, Tome 25 (1989) no. 3, pp. 477-490. http://geodesic.mathdoc.fr/item/DE_1989_25_3_a11/