%0 Journal Article %A Chajda, Ivan %T A groupoid characterization of orthomodular lattices %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 2005 %P 13-18 %V 44 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_2005__44_1_a1/ %G en %F AUPO_2005__44_1_a1