@article{TIMB_2008_16_1_a2,
     author = {A. F. Vasil'ev and I. N. Khalimonchik},
     title = {On hyperradical formations of finite groups},
     journal = {Trudy Instituta matematiki},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2008_16_1_a2/}
}