Burheim, ToreMaegaard, Bente2023-09-222023-09-221998ISSN 1736-6305 (Online)https://hdl.handle.net/10062/92576engopenAccessAttribution-NonCommercial-NoDerivs 3.0 Estoniahttp://creativecommons.org/licenses/by-nc-nd/3.0/ee/Some Results Regarding Tree Homomorphic Feature Structure Grammar and the Empty StringArticle