@article{10_4153_CMB_1960_017_4,
     author = {Marcus, Marvin},
     title = {A {Note} an a {Group} {Defined} by a {Quadratic} {Form}},
     journal = {Canadian mathematical bulletin},
     pages = {143--148},
     year = {1960},
     volume = {3},
     number = {2},
     doi = {10.4153/CMB-1960-017-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1960-017-4/}
}