TY - JOUR AU - S. V. Balychev AU - A. S. Vegera TI - Soluble saturated formations with the $\mathcal{P}_2$ property for finite groups JO - Problemy fiziki, matematiki i tehniki PY - 2020 SP - 74 EP - 80 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PFMT_2020_1_a10/ LA - ru ID - PFMT_2020_1_a10 ER -