%0 Journal Article %A V. A. Shcherbacov %T On definitions of groupoids closely connected with quasigroups %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2007 %P 43-54 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2007_2_a4/ %G en %F BASM_2007_2_a4