Martínez Martín, Erich, Margarita Piedra Díaz, and Annamaris Olmo Velázquez. 2015. “Use of Emulsions With Surfactant Solutions for Viscous Fluids Transportation”. Revista Cubana De Ingeniería 6 (1):51-56. https://rci.cujae.edu.cu/index.php/rci/article/view/365.