%0 Journal Article
%A Drápal, Aleš
%T On a class of commutative groupoids determined by their associativity triples
%J Commentationes Mathematicae Universitatis Carolinae
%D 1993
%P 199-201
%V 34
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1993__34_2_a0/
%G en
%F CMUC_1993__34_2_a0