; ; . STUDY OF RELATIVE VISCOSITY OF THE MUD, USED IN THE TECHNOLOGY OF HORIZONTAL DIRECTIONAL DRILLING. Municipal economy of cities, [S. l.], n. 95, p. 50–55, 2013. Disponível em: https://khg.kname.edu.ua/index.php/khg/article/view/1089. Acesso em: 29 apr. 2025.