Voelkle, Manuel C. Center for Lifespan Psychology, Max Planck Institute for Human Development, Max Planck Society;
Jekauc, D., Voelkle, M. C., Wagner, M. O., Mewes, N., & Woll, A. (2013). Reliability, validity, and measurement invariance of the German version of the Physical Activity Enjoyment Scale. Journal of Pediatric Psychology, 38(1), 104-115. doi:10.1093/jpepsy/jss088.