%0 Journal Article %A Noll, Dominik %T On the theory of $B$- and $B_r$-spaces in general topology %J Czechoslovak Mathematical Journal %D 1989 %P 589-594 %V 39 %N 4 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102332/ %R 10.21136/CMJ.1989.102332 %G en %F 10_21136_CMJ_1989_102332