%0 Journal Article %A Zbigniew Szafraniec %T On topological invariants of vector bundles %J Annales Polonici Mathematici %D 1991 %P 295-301 %V 56 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-56-3-295-301/ %R 10.4064/ap-56-3-295-301 %G en %F 10_4064_ap_56_3_295_301