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@article{DAN_1981_257_2_a1, author = {V. M. Gol'dstein}, title = {Extension of functions with first generalized derivatives from planar domains}, journal = {Doklady Akademii Nauk}, pages = {268--271}, publisher = {mathdoc}, volume = {257}, number = {2}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_257_2_a1/} }
V. M. Gol'dstein. Extension of functions with first generalized derivatives from planar domains. Doklady Akademii Nauk, Tome 257 (1981) no. 2, pp. 268-271. http://geodesic.mathdoc.fr/item/DAN_1981_257_2_a1/