@article{SEMR_2015_12_a15,
     author = {N. M. Suchkov and N. G. Suchkova},
     title = {On normal subgroups of limited permutation groups},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {344--353},
     publisher = {mathdoc},
     volume = {12},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2015_12_a15/}
}