LIU, C.; ZOU, W.; WANG, G. Wideband 5-bit MMIC Digital Attenuator With High Precision. International Journal of Recent Contributions from Engineering, Science & IT (iJES), [S. l.], v. 1, n. 2, p. pp. 40–43, 2013. DOI: 10.3991/ijes.v1i2.3258. Disponível em: https://online-journals.org/index.php/i-jes/article/view/3258. Acesso em: 20 aug. 2022.