%0 Journal Article %A N. K. Kundu %T On some properties of symmetric derivatives %J Annales Polonici Mathematici %D 1974 %P 9-18 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-30-1-9-18/ %R 10.4064/ap-30-1-9-18 %G en %F 10_4064_ap_30_1_9_18