@article{10_21136_CMJ_1978_101555, author = {Porubsk\'y, \v{S}tefan}, title = {Correction to my paper: {{\textquotedblleft}Commutative} semi-primary $x$-semigroups{\textquotedblright}}, journal = {Czechoslovak Mathematical Journal}, publisher = {mathdoc}, volume = {28}, number = {3}, year = {1978}, doi = {10.21136/CMJ.1978.101555}, mrnumber = {0492016}, zbl = {0398.20063}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1978.101555/} }