TY - JOUR AU - Chen, Huanyin AU - Sheibani, Marjan AU - Ashrafi, Nahid TI - Rings consisting entirely of certain elements JO - Czechoslovak Mathematical Journal PY - 2018 SP - 553 EP - 558 VL - 68 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2018.0554-16/ DO - 10.21136/CMJ.2018.0554-16 LA - en ID - 10_21136_CMJ_2018_0554_16 ER -