Sinaiskii, E. S. “Approximation Method for the Problems of Mechanics of Inhomogeneous Hereditarily Elastic Bodies”. Ukrains’kyi Matematychnyi Zhurnal 46, no. 9 (September 25, 1994): 1234–1245. Accessed April 7, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/5640.