LOSSMANN, E.; MEISTER, M. A.; MADAR, U. Noise Level Estimation in the Shortwave Frequency Range. Elektronika ir Elektrotechnika, [S. l.], v. 112, n. 6, p. 85-88, 2011. DOI: 10.5755/j01.eee.112.6.454. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/454. Acesso em: 25 may. 2022.