@inproceedings{burheim-1998-results, title = "Some Results Regarding Tree Homomorphic Feature Structure Grammar and the Empty String", author = "Burheim, Tore", editor = "Maegaard, Bente", booktitle = "Proceedings of the 11th Nordic Conference of Computational Linguistics ({NODALIDA} 1998)", month = mar, year = "1998", address = "Copenhagen, Denmark", publisher = "Center for Sprogteknologi, University of Copenhagen, Denmark", url = "https://aclanthology.org/W98-1619/", pages = "176--185" }