HORNIK, Kurt; MAIR, Patrick; RAUCH, Johannes; GEIGER, Wilhelm; BUCHTA, Christian; FEINERER, Ingo. The textcat Package for n-Gram Based Text Categorization in R. Journal of Statistical Software, [S. l.], v. 52, n. 6, p. 1–17, 2013. DOI: 10.18637/jss.v052.i06. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v052i06. Acesso em: 6 apr. 2025.