TY - JOUR AU - I. A. Tsybin AU - G. N. Titov TI - On question about semi-modularity of lattice of subgroups of finite groups JO - Čebyševskij sbornik PY - 2024 SP - 254 EP - 261 VL - 25 IS - 5 UR - http://geodesic.mathdoc.fr/item/CHEB_2024_25_5_a17/ LA - ru ID - CHEB_2024_25_5_a17 ER -