Larycheva, Liudmyla, Oleh Lutsenko, Yana Chernenko, and Nikolay Voloshyn. “Influence of Impurities in Propane Coolant on the Process of Obtaining Artificial Cold”. Eastern-European Journal of Enterprise Technologies 6, no. 8 (90) (December 18, 2017): 55–62. Accessed May 8, 2024. https://journals.uran.ua/eejet/article/view/118805.