%0 Journal Article %A Hassan Hosseinzadeh %A Henrik Shahgholian %T Qualitative aspects of a free boundary problem %J Annales Fennici Mathematici %D 1999 %P 109-121 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_1999_24_1_a8/ %G en %F AFM_1999_24_1_a8