@article{AL_2003_42_2_a5,
     author = {A. M. Popov},
     title = {A {Criterion} for {Non-Simplicity} of {Groups} with {Involutions}},
     journal = {Algebra i logika},
     pages = {227--236},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2003_42_2_a5/}
}