MILLO, G. Robust Standard Error Estimators for Panel Models: A Unifying Approach. Journal of Statistical Software, [S. l.], v. 82, n. 3, p. 1–27, 2017. DOI: 10.18637/jss.v082.i03. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v082i03. Acesso em: 24 apr. 2024.