[1]
Х. Шуман, “Research Based on Cabri 3D Software: Polyhedra Features and Regular Billiard Trajectories”, Computer Tools in Education, no. 3, pp. 38–50, Nov. 2017, Accessed: Jul. 25, 2026. Available: http://cte.eltech.ru/ojs/index.php/kio/article/view/1489