SABEV, Sabi; CHUKALOV, Konstantin; BAKARDZHIEV, Valeri. DESIGNING A LABORATORY STAND FOR TESTING IMPACT RESISTANCE OF PLASTIC FILMS BY FREE-FALLING DART DROP ACCORDING ASTM D1709. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 3, p. 268–273, 2024. DOI: 10.17770/etr2024vol3.8139. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/8139.. Acesso em: 22 jul. 2024.