W. Kiełczynski, S.O. Kishka, M.V. Panchuk, L.S. Shlapak, N. Theremko, M. Szkodo,. “Study of the Influence of Thermal Factors on the Welding Process of Polyethylene Gas Pipelines”. JOURNAL OF HYDROCARBON POWER ENGINEERING 4, no. 2 (September 13, 2018): 89–92. Accessed November 23, 2024. https://ogpe.nung.edu.ua/index.php/jhpe/article/view/69.