%0 Journal Article %A Helmut Röhrl %T A Theorem on Non-Associative Algebras and its Application to Differential Equations. %J Manuscripta mathematica %D 1977 %P 181-188 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1977__21_154462/ %F MM2_1977__21_154462