Natsyk, V. D., and I. M. Pakhomova. “Topological Aspects of Linear Elastisity Theory (methodological Notes)”. Journal of V. N. Karazin Kharkiv National University. Series Physics0, no. 28 (October 8, 2018): 25-32. Accessed December 4, 2024. https://periodicals.karazin.ua/physics/article/view/11437.