@article{10_4153_CJM_1972_063_0,
     author = {Parrott, David},
     title = {A {Characterization} of the {Tits'} {Simple} {Group}},
     journal = {Canadian journal of mathematics},
     pages = {672--685},
     year = {1972},
     volume = {24},
     number = {4},
     doi = {10.4153/CJM-1972-063-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-063-0/}
}