@article{Holler2003,
  author    = {Anke Holler},
  title     = {An HPSG analysis of the non-integrated wh-relative clauses in German},
  journal   = {Proceedings of the ... International Conference on Head-Driven Phrase Structure Grammar (HPSG)},
  volume    = {10.2003},
  number    = {1},
  pages     = {163 -- 180},
  doi       = {10.21248/hpsg.2003.10},
  year      = {2003},
}