Arzumanian, Victor, Rafayel Barkhudaryan, Stanley Eigen, and Anry Nersessian. “Arshag Hajian: By the 85th Anniversary”. Armenian Journal of Mathematics 7, no. 2 (December 10, 2015): 80–84. Accessed April 26, 2025. https://armjmath.sci.am/index.php/ajm/article/view/113.