@article{1200685626,
author = {Utumi, Yuzo},
title = {On hypergroups of group right cosets},
journal = {Osaka Math. J.},
volume = {1},
number = {1},
year = {1949},
pages = { 73-80},
language = {en},
url = {http://dml.mathdoc.fr/item/1200685626}
}
Utumi, Yuzo. On hypergroups of group right cosets. Osaka Math. J., Tome 1 (1949) no. 1, pp. 73-80. http://gdmltest.u-ga.fr/item/1200685626/