%0 Journal Article %A Ludwik Drużkowski %A Halszka Tutaj %T Differential conditions to verify the Jacobian Conjecture %J Annales Polonici Mathematici %D 1992 %P 253-263 %V 57 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-57-3-253-263/ %R 10.4064/ap-57-3-253-263 %G en %F 10_4064_ap_57_3_253_263