TY - JOUR AU - A. Schmucker AU - G. Czichowski TI - Symmetric Algebras and Normal Forms of Third Order Ordinary Differential Equations JO - Journal of Lie theory PY - 1998 SP - 129 EP - 138 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JLT_1998_8_1_a7/ ID - JLT_1998_8_1_a7 ER -