%0 Journal Article %A Erwin Kasparek %A Michal Lorens %T Remarks on differential concomitants of densities %J Annales Polonici Mathematici %D 1971 %P 215-220 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-25-2-215-220/ %R 10.4064/ap-25-2-215-220 %G en %F 10_4064_ap_25_2_215_220