%0 Journal Article %A LonĨar, Ivan %T Relative continuity of the functor $\beta$ %J Czechoslovak Mathematical Journal %D 1987 %P 517-521 %V 37 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102179/ %R 10.21136/CMJ.1987.102179 %G en %F 10_21136_CMJ_1987_102179