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@article{PFMT_2020_4_a18, author = {I. N. Safonova}, title = {On minimal $\sigma$-local non-$\mathfrak{H}$-formations of finite groups}, journal = {Problemy fiziki, matematiki i tehniki}, pages = {105--112}, publisher = {mathdoc}, number = {4}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/PFMT_2020_4_a18/} }
I. N. Safonova. On minimal $\sigma$-local non-$\mathfrak{H}$-formations of finite groups. Problemy fiziki, matematiki i tehniki, no. 4 (2020), pp. 105-112. http://geodesic.mathdoc.fr/item/PFMT_2020_4_a18/