%0 Journal Article %A K. Kołodziejczyk %T Two constructional problems in aligned spaces %J Applicationes Mathematicae %D 1987 %P 479-484 %V 19 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-3-4-479-484/ %R 10.4064/am-19-3-4-479-484 %G en %F 10_4064_am_19_3_4_479_484