DEMCHENK В. Import and export potential of ash microspheres in Ukraine. "INTERNATIONAL·SCIENTIFIC-·PRACTICAL·JOURNAL·COMMODITIES·AND·MARKETS", [S. l.], v. 22, n. 2, p. 31–38, 2016. Disponível em: https://journals.knute.edu.ua/commodities-and-markets/article/view/1155. Acesso em: 29 apr. 2024.