Kaleicheva, Julieta, Valentin Mishev, Zdravka Karaguiozova, and Galina Nikolcheva. “STRUCTURE AND MECHANICAL PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON WITH NANOSIZED ADDITIVES”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 122–128. Accessed May 4, 2024. https://journals.ru.lv/index.php/ETR/article/view/2605.