TY  - JOUR
AU  - Zdomskyy, Lyubomyr
TI  - A semifilter approach to selection principles II: $\tau^\ast$-covers
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 2006
SP  - 539
EP  - 547
VL  - 47
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_2006__47_3_a15/
LA  - en
ID  - CMUC_2006__47_3_a15
ER  -