1.
Sabev S, Chukalov K, Bakardzhiev V. DESIGNING A LABORATORY STAND FOR TESTING IMPACT RESISTANCE OF PLASTIC FILMS BY FREE-FALLING DART DROP ACCORDING ASTM D1709. ETR [Internet]. 2024 Jun. 22 [cited 2025 Apr. 13];3:268-73. Available from:
https://journals.rta.lv/index.php/ETR/article/view/8139