@misc{miscf8b001af,
title   = {Anel oito articulado},
author = {Purquerio, Benedito de Moraes and Fortulan, Carlos Alberto and Rodrigues, Maysa Corredato Rossi and Elui, Valéria Meirelles Carril},
year = {2013},
publisher = {Instituto Nacional da Propriedade Industrial}
}