FILIPCZYŃSKI, Leszek. Ultrasonic characterization of tissues in cardiology. Archives of Acoustics, [S. l.], v. 8, n. 1, p. 83–94, 2016. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3245. Acesso em: 14 may. 2025.