@article{PFMT_2017_2_a7,
     author = {I. M. Dergacheva and I. P. Shabalina and E. A. Zadorozhnyuk},
     title = {A criterion for a finite group to belong a saturated formation},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {46--49},
     publisher = {mathdoc},
     number = {2},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2017_2_a7/}
}