%0 Journal Article %A Najafi, Ardavan %A Borumand Saeid, Arsham %T Engel BCI-algebras: an application of left and right commutators %J Mathematica Bohemica %D 2021 %P 133-150 %V 146 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2020.0160-18/ %R 10.21136/MB.2020.0160-18 %G en %F 10_21136_MB_2020_0160_18