%0 Journal Article %A Kawohl, Bernhard %T On maximum principles and Liouville theorems for quasilinear elliptic equations and systems %J Commentationes Mathematicae Universitatis Carolinae %D 1983 %P 647-655 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1983__24_4_a5/ %G en %F CMUC_1983__24_4_a5