@incollection{Beierle92LPSS,
   AUTHOR = "C. Beierle",
   TITLE = "Knowledge Based {PPS} Applications in {PROTOS-L}",
    BOOKTITLE = "Logic Programming in Action",
    BEMERKUNG = "LNCS Angabe im Titel, da sonst nicht mit ausgedruckt!! ",
    YEAR = 1992,
    EDITOR = "C. Comyn and N. E. Fuchs and M. J. Ratcliffe",
    PUBLISHER = "Springer-Verlag",
    ADDRESS = springeraddress,
    SERIES = "Lecture Notes in Artificial Intelligence",
    VOLUME = 636,
    PAGEStent  = "80--90"
}