@article{GaertnerSteinbach1997,
  author    = {G{\"a}rtner, Hans-Martin and Steinbach, Markus},
  title     = {Anmerkungen zur Vorfeldphobie pronominaler Elemente},
  year      = {1997},
  language  = {de}
}
@article{GaertnerWilder1997,
  author    = {G{\"a}rtner, Hans-Martin and Wilder, Chris},
  title     = {Zur Rolle von {\"O}konomieprinzipien in der generativen Linguistik},
  year      = {1997},
  language  = {de}
}