Avagyan, G. P. “ON DISTRIBUTION’S CONSTANT SLOWLY VARYING COMPONENT ”. Proceedings of the YSU A: Physical and Mathematical Sciences 43, no. 1 (218) (February 19, 2009): 20–23. Accessed November 23, 2024. https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol43_no1_2009_pp020-023.