1. Harmonic maps with defects;Brezis;Comm. Math. Phys.,1986
2. Minimizing p-harmonic maps into the spheres;Coron;J. Reine Angew. Math.,1989
3. Rotationally symmetric harmonic maps from a ball into a sphere and the regularity problem for weak solutions of elliptic systems;Jäger;J. Reine Angew. Math.,1983
4. Une remarque sur l’application x/|x|;Lin;C. R. Math. Acad. Sci. Paris,1987
5. Stability of the energy minimizing map x/|x|;Nakajima;Comm. Partial Differential Equations,2001