Dependencies of Discourse Structure on the Modality of Communication: Telephone vs. Teletype Philip R Cohen author Scott Fertig author Kathy Starr author 1982-06 text 20th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Toronto, Ontario, Canada conference publication cohen-etal-1982-dependencies 10.3115/981251.981258 https://aclanthology.org/P82-1005/ 1982-06 28 35