Wolfgang Finkler and 
   Günter Neumann. POPEL-HOW: A Distributed Parallel Model for Incremental Natural Language Production with Feedback.  In 
   N. S. Sridharan editor,  11th International Joint Conference on Artificial Intelligence (IJCAI '89), August, Vol.  2:1518-1523, Morgan Kaufmann Publishers, Detroit, Michigan, USA,   1989.
 @InProceedings{Finkler_Neumann:1989,
        AUTHOR = {Finkler, Wolfgang and Neumann, Günter},
        TITLE = {POPEL-HOW: A Distributed Parallel Model for Incremental Natural Language Production with Feedback},
        YEAR = {1989},
        BOOKTITLE = {11th International Joint Conference on Artificial Intelligence (IJCAI '89), August},
        VOLUME = {2},
        PAGES = {1518-1523},
        EDITOR = {Sridharan, N. S.},
        ADDRESS = {Detroit, Michigan, USA},
        PUBLISHER = {Morgan Kaufmann Publishers} } 
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