Schabl, Stephan, and Andreas Konrad. “Effects of a 12-Week Combined Circuit Training Intervention in Physical Education on Motor Performance in Adolescents: A Cluster-Randomized Controlled Trial”. Current Issues in Sport Science (CISS), vol. 11, no. 5, Sept. 2026, p. 025, https://doi.org/10.36950/2026.5ciss025.