GARTZIA GONZÁLEZ, Rolando. Brief History of Additive Manufacture and the Effect of Patents. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 54, n. 1, p. 56–67, 2019. Disponível em: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/4758. Acesso em: 14 sep. 2025.