1. Florea, A. C. (2012). Techno Fashion: A Cultural Revolution. (Master Thesis). University of Aarhus, Denmark.
2. Pulsoximetrie: Stand und Entwicklung der Technik
3. Gregovski, M. J., Mueller, M., & Vertegal, A. (2012). Development and validation of a smartphone heart rate acquisition application for health promotion and wellness telehealth applications. Int. Journal of Telemedecine and Applications, 7.
4. Hu, S., Peris, V. A., Echiadis, A., Zheng, J., & Shi, P. (2009). Development of effective photoplethysmographic measurement techniques: from contact to non-contact and from point to imaging. In Proceedings 31st IEEE EMBC, 6550 – 6553.