@incollection{Ebert89,
  author	= {Ebert, K .H.},
  editor	= {Abraham, W. and Janssen, T.},
  year		= {1989},
  title		= {Aspektmarkierung im Fering},
  booktitle	= {Tempus---Aspekt---Modus},
  publisher	= {Niemeyer},
  address	= {T{\"u}bingen}
}