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@article{PFMT_2013_2_a10, author = {Yu. I. Kulazhenko}, title = {On semicenters of $l$-ary groupoids}, journal = {Problemy fiziki, matematiki i tehniki}, pages = {76--80}, publisher = {mathdoc}, number = {2}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/PFMT_2013_2_a10/} }
Yu. I. Kulazhenko. On semicenters of $l$-ary groupoids. Problemy fiziki, matematiki i tehniki, no. 2 (2013), pp. 76-80. http://geodesic.mathdoc.fr/item/PFMT_2013_2_a10/