1. The fluid flow through porous media;Alt;Manuscripta Math.,1977
2. Strömungen durch inhomogene poröse Medien mit freiem Rand;Alt;J. Reine Angew. Math.,1979
3. The behavior of the free boundary for the dam problem;Alt;Ann. Sci. Norm. Sup. Pisa, (IV),1981
4. Existence and uniqueness for a lubrication problem with nonregular conditions on the free boundary;Bayada;Boll. Unione. Mat. Ital. B (6),1984
5. Existence and uniqueness for a free boundary problem in aluminum electrolysis;Bermúdez;J. Math. Anal. Appl.,1995