Федоренко, Олена Юріївна. “The Enrichments Research of Ukraine Quarz-Feldspar Raw Materials and Their Use Prospects”. Eastern-European Journal of Enterprise Technologies 1, no. 5(55) (February 1, 2012): 54–57. Accessed May 17, 2024. https://journals.uran.ua/eejet/article/view/3387.