%0 Journal Article %A Niederle, Josef %T On equalizers in the category of frames with weakly open homomorphisms %J Czechoslovak Mathematical Journal %D 1992 %P 497-502 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128347/ %R 10.21136/CMJ.1992.128347 %G en %F 10_21136_CMJ_1992_128347