KARAEV, Alan; PONKRATOV, Vadim; MASTEROV, Andrey; KIREEVA, Elena; VOLKOVA, Maria. Cross-country Analysis of the Comparative Efficiency of Government Support for Coal and Lignite Production. International Journal of Energy Economics and Policy, [S. l.], v. 10, n. 5, p. 220–227, 2020. Disponível em: https://econjournals.com.tr/index.php/ijeep/article/view/9550. Acesso em: 2 dec. 2024.