Bich, Dao Huy, and Nguyen Cong Hop. “On the Covergence of an Iteration Method for Solving the Boundary Value Problem in Tile Theory of Elasto - Platic Deformation Processes”. Vietnam Journal of Mechanics 7, no. 3 (September 30, 1985): 6–12. Accessed May 25, 2022. https://vjs.ac.vn/index.php/vjmech/article/view/10389.