%0 Journal Article %A C. Bessaga %A A. Pełczyński %T Estimated extension theorem, homogeneous collections and skeletons and their applications to topological classification of linear metric spaces and convex sets %J Fundamenta Mathematicae %D 1970 %P 153-190 %V 69 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-69-2-153-190/ %R 10.4064/fm-69-2-153-190 %G en %F 10_4064_fm_69_2_153_190