@article{JRAM_1987__0375_0376_152915,
     author = {Michael Gr\"uter},
     title = {Regularity results for minimizing currents with a free boundary.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {307--325},
     publisher = {mathdoc},
     volume = {0375_0376},
     year = {1987},
     zbl = {0604.35025},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1987__0375_0376_152915/}
}