@phdthesis{raphael2013analise ,
 title= {AN{\'A}LISE COMPARATIVA DE M{\'E}TODOS DE AGRUPAMENTOS},
 author= {Raphael de Oliveira Paiva},
 year= {2013},
 note = {Available at  http://monografias.ice.ufjf.br/tcc-web/tcc?id=69},
 school= {Federal University of Juiz de Fora},
 key = {Paiva,2013}
}