%0 Journal Article %A A. A. Vasil'eva %T Closed Spans in $C(T)$ and $L_\varphi (T)$ and Their Approximative Properties %J Matematičeskie zametki %D 2003 %P 135-138 %V 73 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2003_73_1_a11/ %G ru %F MZM_2003_73_1_a11