Adam Gnatowski, and Mateusz Chyra. “Prediction of Changes in Properties of Pipes from Polyethylene in the Research of Simulation of Ageing”. ACTA INNOVATIONS 16 (July 31, 2015): 39–47. Accessed May 6, 2025. https://www.actainnovations.com/index.php/pub/article/view/16_5.