@article{FAA_1975_9_4_a2, author = {S. V. Kislyakov}, title = {Sobolev imbedding operators and the nonisomorphism of certain {Banach} spaces}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {22--27}, publisher = {mathdoc}, volume = {9}, number = {4}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1975_9_4_a2/} }