TY - JOUR AU - Okunev, Oleg TI - Tightness of compact spaces is preserved by the $t$-equivalence relation JO - Commentationes Mathematicae Universitatis Carolinae PY - 2002 SP - 335 EP - 342 VL - 43 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_2002__43_2_a10/ LA - en ID - CMUC_2002__43_2_a10 ER -