%0 Journal Article %A Cattabriga, Lamberto %T A remark on certain overdetermined systems of partial differential equations %J Rendiconti del Seminario Matematico della Università di Padova %D 1983 %P 37-40 %V 69 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1983__69__37_0/ %G en %F RSMUP_1983__69__37_0