@article{GDZPPN00240284X,
title = {A Characterization of the Mathieu Group M11.},
journal = {Mathematische Zeitschrift},
volume = {105},
year = {1968},
pages = {162-166},
zbl = {0164.33101},
url = {http://dml.mathdoc.fr/item/GDZPPN00240284X}
}
Norman, Christopher W. A Characterization of the Mathieu Group M11.. Mathematische Zeitschrift, Tome 105 (1968) pp. 162-166. http://gdmltest.u-ga.fr/item/GDZPPN00240284X/