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@article{PORMA_1963__22_3_114900, author = {Carlitz, L.}, title = {A {Note} on the {Betti-Mathieu} group}, journal = {Portugaliae mathematica}, pages = {121--125}, publisher = {mathdoc}, volume = {22}, number = {3}, year = {1963}, zbl = {0126.05901}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1963__22_3_114900/} }
Carlitz, L. A Note on the Betti-Mathieu group. Portugaliae mathematica, Tome 22 (1963) no. 3, pp. 121-125. http://geodesic.mathdoc.fr/item/PORMA_1963__22_3_114900/