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@article{TM_1985_172_a5, author = {V. I. Burenkov}, title = {Extension of functions with preservation of {Sobolev} seminorm}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {71--85}, publisher = {mathdoc}, volume = {172}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1985_172_a5/} }
V. I. Burenkov. Extension of functions with preservation of Sobolev seminorm. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Investigations on the theory of functions of several real variables and approximation of functons, Tome 172 (1985), pp. 71-85. http://geodesic.mathdoc.fr/item/TM_1985_172_a5/