Calculation of the Hankel Matrix Ranks of Electric and Haemodynamic Processes in the Heart. Elektronika ir Elektrotechnika, [S. l.], v. 91, n. 3, p. 43–48, 2009. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10498.. Acesso em: 5 dec. 2025.