PETRIS, G.; PETRONE, S. State Space Models in R. Journal of Statistical Software, [S. l.], v. 41, n. 4, p. 1–25, 2011. DOI: 10.18637/jss.v041.i04. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v041i04. Acesso em: 20 jun. 2024.