@article{AL_1997_36_5_a6,
     author = {A. I. Sozutov},
     title = {On the existence of $f$-local subgroups in a group},
     journal = {Algebra i logika},
     pages = {573--598},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1997_36_5_a6/}
}