%0 Journal Article %A Chen, Huanyin %A Sheibani, Marjan %A Ashrafi, Nahid %T Rings consisting entirely of certain elements %J Czechoslovak Mathematical Journal %D 2018 %P 553-558 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2018.0554-16/ %R 10.21136/CMJ.2018.0554-16 %G en %F 10_21136_CMJ_2018_0554_16