@article{PFMT_2025_1_a13,
     author = {I. N. Safonova and V. V. Skrundz},
     title = {On $\sigma$-local formations of finite groups with bounded $\mathfrak{H}_\sigma$-defect},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {87--101},
     publisher = {mathdoc},
     number = {1},
     year = {2025},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2025_1_a13/}
}