K. A. Pfeiffer

Artificial neural networks to predict activity type and energy expenditure in youth.

Weng-Keen Wong, Stewart G Trost, Yonglei Zheng, 2012, Medicine and science in sports and exercise.

Physical activity in overweight and nonoverweight preschool children

Russell R. Pate, S. Trost, R. Pate, 2003, International Journal of Obesity.