Chipise, Liberty, Robert Batane, Pushpendra K. Jain, Stephan H. Coetzee, Bernard O. Odera, William Goosen, and Lesley A. Cornish. 2021. “Hardness Characteristics of As-Cast Ni-Ru-Zr Alloys”. Journal of Mining and Metallurgy, Section B: Metallurgy 57 (2), 261-70. https://aseestant.ceon.rs/index.php/jmm/article/view/25432.