%0 Journal Article
%A Logunov, Sergei
%T On butterfly-points in $\beta X$, Tychonoff products and weak Lindelöf numbers
%J Commentationes Mathematicae Universitatis Carolinae
%D 2022
%P 379-383
%V 63
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2022.023/
%R 10.14712/1213-7243.2022.023
%G en
%F 10_14712_1213_7243_2022_023