@article{AFM_2003_28_1_a8,
     author = {Bj\"orn Gustafsson and Makoto Sakai},
     title = {Sharp estimates of the curvature of some free boundaries in two dimensions},
     journal = {Annales Fennici Mathematici},
     pages = {123--142},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2003_28_1_a8/}
}