1. Using the piezoresistive accelerometer in posture and motion monitoring;Busser,1994
2. Activity monitoring with accelerometers;Bussmann,1994
3. Quantification of physical activities by means of ambulatory accelerometry: a validation study;Bussmann;Psychophysiology,1998
4. Ambulatory assessment. Computer-assisted psychological and psychophysiological methods in monitoring and field studies,1996
5. A multi-channel investigation of physical activity;Fahrenberg;Journal of Psychophysiology,1996