@article{10_4153_CJM_1969_032_8,
     author = {Zassenhaus, Hans J.},
     title = {A {Presentation} of the {Groups} {PSL(2,} p) with {Three} {Defining} {Relations}},
     journal = {Canadian journal of mathematics},
     pages = {310--311},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-032-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-032-8/}
}