Standardising remote testing: a universally applicable method. - Tuomas Happonen; Juha Häkkinen (Int. J. Serv. Stand., 2010)

Wearable Upper Arm SpO2 Sensor for Wellness Monitoring. - Matti T. Kinnunen; Mohammad H. Behfar; Nuutti Santaniemi; Tuomas Happonen; Dung Nguyen; Joni Kilpijärvi; Tommi Jaako; Jukka Happonen; Monica K. Russell; Christian A. Clermont; Michael J. Asmussen; Trevor A. Day; et al. (IEEE Trans. Biomed. Eng., 2025)