@article{IM2_1971_5_4_a4,
     author = {V. A. Belonogov},
     title = {Characterization of some finite simple groups},
     journal = {Izvestiya. Mathematics },
     pages = {805--814},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1971_5_4_a4/}
}