@inproceedings{lombardo-lesmo-1998-formal, title = "Formal aspects and parsing issues of dependency theory", author = "Lombardo, Vincenzo and Lesmo, Leonardo", booktitle = "{COLING} 1998 Volume 2: The 17th International Conference on Computational Linguistics", year = "1998", url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/C98-2125/" }