%0 Journal Article %A Fox, L. %T Two free-boundary problems with singularities %J Acta Universitatis Carolinae. Mathematica et Physica %D 1974 %P 19-23 %V 15 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUCMP_1974__15_1-2_a5/ %G en %F AUCMP_1974__15_1-2_a5