@article{10_4064_cm_60_61_2_547_568,
     author = {David Jerison},
     title = {Regularity of the {Poisson} kernel and free boundary problems},
     journal = {Colloquium Mathematicum},
     pages = {547--568},
     publisher = {mathdoc},
     volume = {60},
     number = {2},
     year = {1990},
     doi = {10.4064/cm-60-61-2-547-568},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-2-547-568/}
}