Kurowski, P., K. Szelag, W. Zaluski, and R. Sitnik. “Accurate Ball Tracking in Volleyball Actions to Support Referees”. Opto-Electronics Review 26, no. 4 (April 26, 2026): 296–306. Accessed May 14, 2026. https://wydawnictwo.pan.pl/index.php/opelre/article/view/704.