Comunello, Éder, Lucio Borges de Araújo, Paulo Cesar Sentelhas, Mirian Fernandes Carvalho Araújo, Carlos Tadeu dos Santos Dias, and Carlos Ricardo Fietz. 2014. “The Use of Cluster Analysis in the Study of Rainfall Characteristics”. Sigmae 2 (3):29-37. https://publicacoes.unifal-mg.edu.br/revistas/index.php/sigmae/article/view/314.