PILOVA, K. Determination of competitiveness of coal is on the cost of use fuel heat. Skhid, [S. l.], n. 3(110), p. 44–46, 2013. DOI: 10.21847/1728-9343.2011.3(110).17382. Disponível em: http://skhid.kubg.edu.ua/article/view/17382. Acesso em: 4 oct. 2022.