A Context-Free Approximation of Head-Driven Phrase Structure Grammar

@incollection{pub1111,
    author = {

Kiefer, Bernd
 and 

Krieger, Hans-Ulrich
},
    title = {A Context-Free Approximation of Head-Driven Phrase Structure Grammar},
    booktitle = {Efficiency in Unification-Based Processing},
    year = {2001},
    publisher = {CSLI Lecture Notes}
}