1. Existence and regularity almost everywhere of solutions to elliptic variational problems among surfaces of varying topological type and singularity structure;['Almgren, Frederick J.'];Ann. Math.,1968
2. [2] Almgren, Frederick J. Existence and regularity almost everywhere of solutions to elliptic variational problems with constraints, Memoirs of the American Mathematical Society, 4, American Mathematical Society, 1976, i+1999 pages
3. [3] Ambrosio, Luigi; Fusco, Nicola; Pallara, Diego Functions of bounded variation and free discontinuity problems, Oxford Mathematical Monographs, Clarendon Press, 2000, xviii+434 pages
4. [4] Berger, Marcel Géométrie. Vol. 5 : La sphère pour elle-même, géométrie hyperbolique, l’espace des sphères, CEDIC/Fernand Nathan, 1977
5. Minimal surfaces, corners, and wires;['Brakke, Kenneth A.'];J. Geom. Anal.,1992