HUANG, Ting-Hao; LASECKI, Walter; BIGHAM, Jeffrey. Guardian: A Crowd-Powered Spoken Dialog System for Web APIs. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, [S. l.], v. 3, n. 1, p. 62–71, 2015. DOI: 10.1609/hcomp.v3i1.13237. Disponível em: https://ojs.aaai.org/index.php/HCOMP/article/view/13237. Acesso em: 7 may. 2026.