%0 Journal Article %A Zelinka, Bohdan %T Tolerance in algebraic structures. II %J Czechoslovak Mathematical Journal %D 1975 %P 175-178 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1975.101308/ %R 10.21136/CMJ.1975.101308 %G en %F 10_21136_CMJ_1975_101308