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@article{DAN_1967_172_1_a11, author = {G. M. Henkin}, title = {Proof of non-isomorphism of spaces of smooth functions on a segment and on a square}, journal = {Doklady Akademii Nauk}, pages = {48--51}, publisher = {mathdoc}, volume = {172}, number = {1}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a11/} }
G. M. Henkin. Proof of non-isomorphism of spaces of smooth functions on a segment and on a square. Doklady Akademii Nauk, Tome 172 (1967) no. 1, pp. 48-51. http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a11/