@article{10_4153_CMB_1973_018_2,
     author = {Parrott, David},
     title = {On the {Simple} {Group} of {J.} {Tits}},
     journal = {Canadian mathematical bulletin},
     pages = {87--92},
     year = {1973},
     volume = {16},
     number = {1},
     doi = {10.4153/CMB-1973-018-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-018-2/}
}