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@article{FORUM_1992__4_6_141685, author = {Richard Weiss and John van Bon}, title = {A characterization of the groups {Fi22,} {Fi23} and {F24.}}, journal = {Forum mathematicum}, pages = {425--432}, publisher = {mathdoc}, volume = {4}, number = {6}, year = {1992}, zbl = {0775.20002}, url = {http://geodesic.mathdoc.fr/item/FORUM_1992__4_6_141685/} }
Richard Weiss; John van Bon. A characterization of the groups Fi22, Fi23 and F24.. Forum mathematicum, Tome 4 (1992) no. 6, pp. 425-432. http://geodesic.mathdoc.fr/item/FORUM_1992__4_6_141685/