TY - JOUR AU - V. A. Kolpakova AU - A. S. Kondrat'ev TI - On finite nonsolvable $5$-primary groups with disconnected Gruenberg--Kegel graph such that $\bigl|\pi\bigl(G / F(G)\bigr)\bigr| \le 4$ JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2015 SP - 69 EP - 87 VL - 20 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2015_20_5_a7/ LA - ru ID - FPM_2015_20_5_a7 ER -