@article{MZ_1968__105_170967,
     author = {Donald G. Higman and Charles C. Sims},
     title = {A {Simple} {Group} of {Order} 44,352,000.},
     journal = {Mathematische Zeitschrift},
     pages = {110--113},
     publisher = {mathdoc},
     volume = {105},
     year = {1968},
     zbl = {0186.04002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__105_170967/}
}