UNGER, H. G. SINGLE-MODE FIBRES WITH LOW DISPERSION AND LOW LOSS FOR LED-SIGNALS. Periodica Polytechnica Electrical Engineering, [S. l.], v. 30, n. 4, p. 179–189, 1986. Disponível em: https://pp.bme.hu/ee/article/view/4655. Acesso em: 29 apr. 2025.