%0 Journal Article %A Tkachenko, Mikhail %T A countably cellular topological group all of whose countable subsets are closed need not be $\mathbb{R}$-factorizable %J Commentationes Mathematicae Universitatis Carolinae %D 2023 %P 127-135 %V 64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2023.016/ %R 10.14712/1213-7243.2023.016 %G en %F 10_14712_1213_7243_2023_016