KOPUSTINSKAS, A.; KITKAUSKAITE, A. The Investigation of the Interpolator of Two Carrier Frequency Blood Velocity Estimation System. Elektronika ir Elektrotechnika, [S. l.], v. 13, n. 4, 1997. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/15903. Acesso em: 6 dec. 2022.