БАКУЛІН, Є. М. Environmental aspects of production and application of lubricating additives to drilling fluids. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas, [S. l.], n. 1(34), p. 69–73, 2013. Disponível em: https://nv.nung.edu.ua/index.php/nv/article/view/222. Acesso em: 11 nov. 2026.