Malanchuk, Zinovii, Valerii Korniyenko, Yevhenii Malanchuk, and Andriy Khrystyuk. “Results of Experimental Studies of Amber Extraction by Hydromechanical Method in Ukraine”. Eastern-European Journal of Enterprise Technologies 3, no. 10(81) (June 30, 2016): 24–28. Accessed June 21, 2024. https://journals.uran.ua/eejet/article/view/72404.