@article{TIMB_2023_31_2_a7,
     author = {I. N. Safonova},
     title = {On critical $\sigma$-local formations of finite groups},
     journal = {Trudy Instituta matematiki},
     pages = {63--80},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2023_31_2_a7/}
}