Sierra Restrepo, H., C. A. García, J. Morales, and J. M. Vélez. “Relationship Between Wear and Tenacity for Some Steels . To Equal Hardness Levels”. Revista Universidad EAFIT, vol. 36, no. 117, June 2012, pp. 59-67, https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/1042.