%0 Journal Article %A M. van de Vel %T Superextensions and Lefschetz fixed point structures %J Fundamenta Mathematicae %D 1979 %P 27-42 %V 104 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-104-1-27-42/ %R 10.4064/fm-104-1-27-42 %G en %F 10_4064_fm_104_1_27_42