%0 Journal Article %A Schwarz, Štefan %T Circulant Boolean relation matrices %J Czechoslovak Mathematical Journal %D 1974 %P 252-253 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1974.101236/ %R 10.21136/CMJ.1974.101236 %G en %F 10_21136_CMJ_1974_101236