Nazaryan, E. A., M. M. Arakelyan, A. S. Markosyan, and N. N. Arab. 2023. “LARGE DEFORMATIONS OF A THIN RING PLATE. I”. Proceedings of the YSU A: Physical and Mathematical Sciences 42 (2 (216). Yerevan, Armenia:34-40. https://doi.org/10.46991/PYSU:A/2008.42.21.034.