BURBA, T. A Model of Ultrasound Contrast Agent for Blood Flow Investigation at Higher Harmonics. Elektronika ir Elektrotechnika, [S. l.], v. 72, n. 8, p. 79-82, 2006. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10794. Acesso em: 29 mar. 2024.