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@article{JRAM_1985__358_152731, author = {Bernd Voigt}, title = {Extensions of the {Graham-Leeb-Rothschild} theorem.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {209--220}, publisher = {mathdoc}, volume = {358}, year = {1985}, zbl = {0553.05011}, url = {http://geodesic.mathdoc.fr/item/JRAM_1985__358_152731/} }
Bernd Voigt. Extensions of the Graham-Leeb-Rothschild theorem.. Journal für die reine und angewandte Mathematik, Tome 358 (1985), pp. 209-220. http://geodesic.mathdoc.fr/item/JRAM_1985__358_152731/