Petrič, Maja. “What Are the Endurance Times of the Trunk Muscle Endurance Tests on the Roman Chair: A Preliminary Normative Study”. In Socratic Lectures 12th International Symposium, Ljubljana, 11. January, 2025: PART I, edited byYelena Istileulova, 105–110. Ljubljana, SI: Založba Univerze v Ljubljani, 2025. Accessed March 14, 2025. https://ebooks.uni-lj.si/ZalozbaUL/catalog/book/723/chapter/4069.