TY  - JOUR
AU  - Logunov, Sergei
TI  - On butterfly-points in $\beta X$, Tychonoff products and weak Lindelöf numbers
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 2022
SP  - 379
EP  - 383
VL  - 63
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2022.023/
DO  - 10.14712/1213-7243.2022.023
LA  - en
ID  - 10_14712_1213_7243_2022_023
ER  -