FOX, J.-P. .; ENTINK, R. . K. .; VAN DER LINDEN, W. . Modeling of Responses and Response Times with the Package cirt. Journal of Statistical Software, [S. l.], v. 20, n. 7, p. 1–14, 2007. DOI: 10.18637/jss.v020.i07. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v020i07. Acesso em: 3 feb. 2023.