%0 Journal Article %A Richard O'Malley %T The multiple intersection property for path derivatives %J Fundamenta Mathematicae %D 1987 %P 1-6 %V 128 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-128-1-1-6/ %R 10.4064/fm-128-1-1-6 %G en %F 10_4064_fm_128_1_1_6