@article{JRAM_1965__218_150682,
     author = {D.G. Higman and J.E. McLaughlin},
     title = {Rank 3 subgroups of finite symplectic and unitary groups.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {174--189},
     publisher = {mathdoc},
     volume = {218},
     year = {1965},
     zbl = {0139.02101},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1965__218_150682/}
}