So close, so far away: analysis of surnames in a town of twins (Cándido Godoi, Brazil)
de Oliveira, Marcelo Zagonel; Faccini, Lavínia Schüler; Demarchi, Dario; Alfaro, Emma L.; Dipierri, José E.; Veronez, Mauricio R.; Cassel, Marlise Colling; Ribeiro, Alice Tagliani; Matte, Ursula Silveira; Ramallo, Virginia