@inproceedings{BP88Coling,
    AUTHOR = "C. Beierle and U. Pletat",
    TITLE = "Feature Graphs and Abstract Data Types: {A} Unifying Approach",
    BOOKTITLE = "Proceedings of the 12th International Conference on
                 Computational Linguistics",
    YEAR = 1988,
    PAGES = "40--45",
    ADDRESS = {Budapest, Hungary},
    NOTE1 = "(also as LILOG Report No. 39, IBM, Stuttgart, W. Germany)" }