%0 Journal Article %A Ivan Kolář %T On the absolute differentiation of geometric object fields %J Annales Polonici Mathematici %D 1972 %P 293-304 %V 27 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-27-3-293-304/ %R 10.4064/ap-27-3-293-304 %G en %F 10_4064_ap_27_3_293_304