Nigg, Carina, Christoph Weber, Jasper Schipperijn, Markus Reichert, Doris Oriwol, Annette Worth, Alexander Woll, and Claudia Niessner. “Urban-Rural Differences in children’s and adolescent’s Physical Activity and Screen Time Trends across 15 Years: Mini-Oral Presentation B1.7”. The Health & Fitness Journal of Canada 14, no. 3 (September 30, 2021). Accessed April 19, 2024. https://hfjc.library.ubc.ca/index.php/HFJC/article/view/596.