Andreas Merkel and 
   Dietrich Klakow. Improved Methods for Language Model Based Question Classification.  In Proceedings of 8th Interspeech Conference, Antwerp,   2007.   Note: DK.
 @InProceedings{MeKl2007,
        AUTHOR = {Merkel, Andreas and Klakow, Dietrich},
        TITLE = {Improved Methods for Language Model Based Question Classification},
        YEAR = {2007},
        BOOKTITLE = {Proceedings of 8th Interspeech Conference, Antwerp},
        PDF = {https://www.coli.uni-saarland.de/publications/intern/uploads/pdf/is_2007_amerkel_v4.pdf},
        NOTE = {DK} } 
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