%0 Journal Article %A Arhangel'skii, A. V. %T Addition theorems for dense subspaces %J Commentationes Mathematicae Universitatis Carolinae %D 2015 %P 531-541 %V 56 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.142/ %R 10.14712/1213-7243.2015.142 %G en %F 10_14712_1213_7243_2015_142