TY - JOUR AU - Chen, Ruifang AU - Zhao, Xianhe TI - On TI-subgroups and QTI-subgroups of finite groups JO - Czechoslovak Mathematical Journal PY - 2020 SP - 179 EP - 185 VL - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0203-18/ DO - 10.21136/CMJ.2019.0203-18 LA - en ID - 10_21136_CMJ_2019_0203_18 ER -