Kaleicheva, Julieta, Valentin Mishev, Zdravka Karaguiozova, and Galina Nikolcheva. “STRUCTURE AND MECHANICAL PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON WITH NANOSIZED ADDITIVES”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 122–128. Accessed July 10, 2025. https://journals.rta.lv/index.php/ETR/article/view/2605.