Randler, Christoph, Julia Haun, and Steffen Schaal. “Assessing the Influence of Sleep-Wake Variables on Body Mass Index (BMI) in Adolescents”. Europe’s Journal of Psychology 9, no. 2 (May 31, 2013): Article e558. Accessed May 2, 2026. https://ejop.psychopen.eu/index.php/ejop/article/view/558.