MCKILLIP, John L. Objective Lens. Fine Focus, [S. l.], v. 8, n. 1, p. 6–7, 2022. DOI: 10.33043/FF.8.1.6-7. Disponível em: https://openjournals.bsu.edu/finefocus/article/view/4004. Acesso em: 25 apr. 2024.