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@article{DAN_1995_340_4_a3, author = {O. V. Viskov}, title = {On a theorem of {R.} {A.} {Sack} for shift operators}, journal = {Doklady Akademii Nauk}, pages = {463--466}, publisher = {mathdoc}, volume = {340}, number = {4}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1995_340_4_a3/} }
O. V. Viskov. On a theorem of R. A. Sack for shift operators. Doklady Akademii Nauk, Tome 340 (1995) no. 4, pp. 463-466. http://geodesic.mathdoc.fr/item/DAN_1995_340_4_a3/