@article{HarutyunyanSchulze2006,
  author    = {Gohar Harutyunyan and Bert-Wolfgang Schulze},
  title     = {The Zaremba problem with singular interfaces as a corner boundary value problem},
  journal   = {Potential analysis : an international journal devoted to the interactions between potential theory, probability theory, geometry and functional analysis},
  volume    = {25},
  pages     = {327 -- 369},
  doi       = {10.1007/s11118-006-9020-6},
  year      = {2006},
}