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@article{DAN_1983_273_2_a9, author = {V. V. Shan'kov}, title = {An averaging operator with variable radius and an inverse theorem}, journal = {Doklady Akademii Nauk}, pages = {307--309}, publisher = {mathdoc}, volume = {273}, number = {2}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1983_273_2_a9/} }
V. V. Shan'kov. An averaging operator with variable radius and an inverse theorem. Doklady Akademii Nauk, Tome 273 (1983) no. 2, pp. 307-309. http://geodesic.mathdoc.fr/item/DAN_1983_273_2_a9/