@article{BeierlePletatStuder93,
    AUTHOR = "C. Beierle and U. Pletat and R. Studer",
    TITLE = "Knowledge Representation for Natural Language Understanding:
             {T}he {L-LILOG} Approach",
    JOURNAL = "IEEE Transactions on Knowledge and Data Engineering",
    YEAR = 1993,
    VOLUME = 5,
    NUMBER = 3,
    PAGES = "386--401",
    MONTH = "June"  }