Nigg, Carina, Mirnes Dekanovic, Simon Endes, Claudio Nigg, and Mirko Schmidt. “Effects of Active and Active Structured Play on Physical Activity in Preschool Children – A Systematic Review: Mini-Oral Presentation B1.5”. The Health & Fitness Journal of Canada 14, no. 3 (September 30, 2021). Accessed April 23, 2024. https://hfjc.library.ubc.ca/index.php/HFJC/article/view/594.