%0 Journal Article %A Arhangel'skii, Aleksander V. %T Functional tightness, $Q$-spaces and $\tau$-embeddings %J Commentationes Mathematicae Universitatis Carolinae %D 1983 %P 105-120 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1983__24_1_a9/ %G en %F CMUC_1983__24_1_a9