@article{10_4153_CJM_1968_046_8,
     author = {Lorimer, P. J.},
     title = {On {S2-Groups} and {Groups} of {Moebius} {Transformations}},
     journal = {Canadian journal of mathematics},
     pages = {484--485},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-046-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-046-8/}
}