Díez, M. A., R. Álvarez, R. Radoslavov, C. Barriocanal, C. S. Canga, and J. Xiberta. “Development of a New Laboratory-Scale Method for the Determination of Coke Mechanical Strength”. Revista De Metalurgia, vol. 38, no. 6, Dec. 2002, pp. 410-8, doi:10.3989/revmetalm.2002.v38.i6.426.