SZAJ, W.; WOJNAROWSKA, W.; PAJDO, B. First Evaluation of the PTN-104 Plethysmographic Sensor for Heart Rate Measurement. Measurement Science Review, [S. l.], v. 21, n. 5, p. 117–122, 2021. DOI: 10.2478/msr-2021-0017. Disponível em: https://journals.savba.sk/index.php/msr/article/view/1803. Acesso em: 15 may. 2024.