HASHEMI, S. A.; GHAFOORIFARD, H.; ABDIPOUR, A. Amplitude Noise of Electrical Oscillators Based on the LTV Model. Elektronika ir Elektrotechnika, [S. l.], v. 18, n. 8, p. 31-36, 2012. DOI: 10.5755/j01.eee.18.8.2607. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/2607. Acesso em: 29 nov. 2021.