Raransky, M. D., V. N. Balazyuk, and M .M. Gunko. “Auxeticity Properties of Hexagonal Syngony Crystals”. Physics and Chemistry of Solid State 16, no. 1 (March 15, 2015): 34–43. Accessed November 23, 2024. https://vps.pnu.edu.ua/index.php/pcss/article/view/1706.