@article{10_4007_annals_2010_172_1907,
     author = {John Lewis and Kaj Nystr\"om },
     title = {Boundary behavior and the {Martin} boundary problem for $p$ harmonic functions  in {Lipschitz} domains},
     journal = {Annals of mathematics},
     pages = {1907--1948},
     publisher = {mathdoc},
     volume = {172},
     number = {3},
     year = {2010},
     doi = {10.4007/annals.2010.172.1907},
     mrnumber = {2726103},
     zbl = {1210.31004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.172.1907/}
}