Nguyen, Thao, and Nhung Le. “The Effect of Loading Frequency on the Cyclic Mechanical Behavior of Polyethylene”. Science and Technology Development Journal 18, no. 4 (December 30, 2015): 162-169. Accessed April 5, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1002.