%0 Journal Article %A E. Tymchatyn %T Partial order and collapsibility of 2-complexes %J Fundamenta Mathematicae %D 1972 %P 5-7 %V 77 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-77-1-5-7/ %R 10.4064/fm-77-1-5-7 %G en %F 10_4064_fm_77_1_5_7