%0 Journal Article %A Hiroaki Aikawa %A Makoto Ohtsuka %T Extremal length of vector measures %J Annales Fennici Mathematici %D 1999 %P 61-88 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_1999_24_1_a5/ %G en %F AFM_1999_24_1_a5