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@article{PORMA_1953__12_4_114725, author = {Is\'eki, Kiyoshi}, title = {On a theorem of {Reiferberg}}, journal = {Portugaliae mathematica}, pages = {141--142}, publisher = {mathdoc}, volume = {12}, number = {4}, year = {1953}, mrnumber = {0059544}, zbl = {0052.39604}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1953__12_4_114725/} }
Iséki, Kiyoshi. On a theorem of Reiferberg. Portugaliae mathematica, Tome 12 (1953) no. 4, pp. 141-142. http://geodesic.mathdoc.fr/item/PORMA_1953__12_4_114725/