%0 Journal Article %A Ilpo Laine %T Harmonic morphisms and non-linear potential theory %J Banach Center Publications %D 1992 %P 271-275 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/-27-1-271-275/ %R 10.4064/-27-1-271-275 %G en %F 10_4064__27_1_271_275