TURI, Z. GESTALTUNGSPROBLEME DER FRONTBLENDENOBJEKTIVE. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 33, n. 3, p. 176–186, 1989. Disponível em: https://pp.bme.hu/me/article/view/5646. Acesso em: 23 jul. 2024.