PHAM, CUONG, NGUYEN NGOC DIEP, and TU MINH PHUONG. 2013. “A WEARABLE SENSOR BASED APPROACH TO REAL-TIME FALL DETECTION AND FINE-GRAINED ACTIVITY RECOGNITION”. Journal of Mobile Multimedia 9 (1-2):015-026. https://journals.riverpublishers.com/index.php/JMM/article/view/4633.