Lukočius, R., J.A. Virbalis, and A. Vegys. “Optimal Interval of Pulse and Breathing Signal Formation”. Elektronika ir Elektrotechnika 90, no. 2 (February 1, 2009): 103-106. Accessed March 29, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/10532.