%0 Journal Article %A Ježek, J. %T Free groupoids in varieties determined by a short equation %J Acta Universitatis Carolinae. Mathematica et Physica %D 1982 %P 3-24 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUCMP_1982__23_1_a1/ %G en %F AUCMP_1982__23_1_a1