@inproceedings{argenton-feldhaus-1999-treegram, title = "The Treegram {I}ndex{---}{A}n Efficient Technique for Retrieval in Linguistic Treebanks", author = "Argenton, Hans and Feldhaus, Anke", editor = "Thompson, Henry S. and Lascarides, Alex", booktitle = "Ninth Conference of the {E}uropean Chapter of the Association for Computational Linguistics", month = jun, year = "1999", address = "Bergen, Norway", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/E99-1041/", pages = "267--268" }