@article{10_4153_CJM_1967_082_9,
     author = {Janko, Zvonimir},
     title = {A {Characterization} of the {Finite} {Simple} {Group} {PSp4(3)}},
     journal = {Canadian journal of mathematics},
     pages = {872--894},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-082-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-082-9/}
}