@article{MZM_2002_71_1_a4,
     author = {V. A. Vedernikov and M. M. Sorokina},
     title = {$\omega${-Fibered} {Formations} and {Fitting} {Classes} of {Finite} {Groups}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {43--60},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2002_71_1_a4/}
}