LUKOČIUS, R.; VIRBALIS, J.; VEGYS, A. Optimal Interval of Pulse and Breathing Signal Formation. Elektronika ir Elektrotechnika, [S. l.], v. 90, n. 2, p. 103-106, 2009. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10532. Acesso em: 18 may. 2024.