MAIR, P.; DE LEEUW, J. A General Framework for Multivariate Analysis with Optimal Scaling: The R Package aspect. Journal of Statistical Software, [S. l.], v. 32, n. 9, p. 1–23, 2010. DOI: 10.18637/jss.v032.i09. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v032i09. Acesso em: 2 may. 2024.