%0 Journal Article %A Jedlička, P. %T The rings which are Boolean. II. %J Acta Universitatis Carolinae. Mathematica et Physica %D 2012 %P 73-75 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUCMP_2012__53_1_a6/ %G en %F AUCMP_2012__53_1_a6