Tacit Social Contracts for Wheelchairs Daniel Couto Vale author Vivien Mast author 2013-08 text Proceedings of the SIGDIAL 2013 Conference Maxine Eskenazi editor Michael Strube editor Barbara Di Eugenio editor Jason D Williams editor Association for Computational Linguistics Metz, France conference publication couto-vale-mast-2013-tacit https://aclanthology.org/W13-4044/ 2013-08 294 303