%0 Journal Article %A Šlapal, Josef %T Cardinal arithmetic of general relational systems %J Czechoslovak Mathematical Journal %D 1993 %P 125-139 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1993.128380/ %R 10.21136/CMJ.1993.128380 %G en %F 10_21136_CMJ_1993_128380