The global helium market. Production and consumption volumes, industry problems. Gazprom’s role in the global helium market. "Journal "U". Economy. Management. Finance.", [S. l.], n. 1, p. 156–167, 2025. Disponível em: https://www.portal-u.ru/index.php/journal/article/view/1081. Acesso em: 15 dec. 2025.