On ∑-groups
Rangaswamy, K.
Bulletin de la Société Mathématique de France, Tome 92 (1964), p. 259-262 / Harvested from Numdam
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@article{BSMF_1964__92__259_0,
     author = {Rangaswamy, K. M.},
     title = {On $\sum $-groups},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     volume = {92},
     year = {1964},
     pages = {259-262},
     doi = {10.24033/bsmf.1610},
     mrnumber = {32 \#5733},
     zbl = {0127.25501},
     language = {en},
     url = {http://dml.mathdoc.fr/item/BSMF_1964__92__259_0}
}

Rangaswamy, K. On $\sum $-groups. Bulletin de la Société Mathématique de France, Tome 92 (1964) pp. 259-262. doi : 10.24033/bsmf.1610. http://gdmltest.u-ga.fr/item/BSMF_1964__92__259_0/

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