1. Existence and regularity for a minimum problem with free boundary;Alt;J. Reine Angew. Math.,1981
2. Asymmetric jet flows;Alt;Comm. Pure Appl. Math.,1982
3. Jet flows with gravity;Alt;J. Reine Angew. Math.,1982
4. Axially symmetric jet flows;Alt;Arch. Ration. Mech. Anal.,1983
5. Jets with two fluids. I. One free boundary;Alt;Indiana Univ. Math. J.,1984