%0 Journal Article
%A Hans Wilhelm Alt
%T The Fluid Flow Through Porous Media. Regularity of the Free Surface.
%J Manuscripta mathematica
%D 1977
%P 255-272
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1977__21_154467/
%F MM2_1977__21_154467