@article{GDZPPN002100339, title = {On a free boundary problem for minimal surfaces.}, journal = {Inventiones mathematicae}, volume = {75}, year = {1984}, pages = {547-560}, zbl = {0537.35037}, url = {http://dml.mathdoc.fr/item/GDZPPN002100339} }
Struwe, M. On a free boundary problem for minimal surfaces.. Inventiones mathematicae, Tome 75 (1984) pp. 547-560. http://gdmltest.u-ga.fr/item/GDZPPN002100339/