Alahverdzhieva, Katya & Lascarides, Alex. 2010. Analysing speech and co-speech gesture in constraint-based grammars. Proceedings of the 17th International Conference on Head-Driven Phrase Structure Grammar 6–26. (doi:10.21248/hpsg.2010.1) (https://proceedings.hpsg.xyz/article/view/729) (Accessed July 22, 2024.)