LIGGES, U.; MAECHLER, M. scatterplot3d - An R Package for Visualizing Multivariate Data. Journal of Statistical Software, [S. l.], v. 8, n. 11, p. 1–20, 2003. DOI: 10.18637/jss.v008.i11. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v008i11. Acesso em: 27 feb. 2024.