%0 Journal Article %A A. Schmucker %A G. Czichowski %T Symmetric Algebras and Normal Forms of Third Order Ordinary Differential Equations %J Journal of Lie theory %D 1998 %P 129-138 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_1998_8_1_a7/ %F JLT_1998_8_1_a7