Нікітчук, Т.М. “The Method of Phase Plane As a Way to Survey the State of the Cardiovascular System Based on Pulse Wave Analysis”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia0, no. 48 (February 27, 2012): 179-185. Accessed July 3, 2024. https://radap.kpi.ua/radiotechnique/article/view/158.