@article{ASNSP_2002_5_1_1_111_0,
     author = {Lieberman, Gary M.},
     title = {Higher regularity for nonlinear oblique derivative problems in {Lipschitz} domains},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {111--151},
     publisher = {Scuola normale superiore},
     volume = {Ser. 5, 1},
     number = {1},
     year = {2002},
     mrnumber = {1994804},
     zbl = {1170.35423},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_2002_5_1_1_111_0/}
}