@article{10_4153_CJM_1973_055_4,
     author = {Hayden, John L.},
     title = {A {Characterization} of the {Finite} {Simple} {Group} {PSp4(3)}},
     journal = {Canadian journal of mathematics},
     pages = {539--553},
     year = {1973},
     volume = {25},
     number = {3},
     doi = {10.4153/CJM-1973-055-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-055-4/}
}