%0 Journal Article %A M. McCord %T Non-standard analysis and homology %J Fundamenta Mathematicae %D 1972 %P 21-28 %V 74 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-74-1-21-28/ %R 10.4064/fm-74-1-21-28 %G en %F 10_4064_fm_74_1_21_28