Arabyan MH. ON AN EIGENVALUE PROBLEM. Proc. YSU A: Phys. Math. Sci. [Internet]. 2005 Oct. 20 [cited 2024 Nov. 23];39(3 (208):31-9. Available from: https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol39_no3_2005_pp031-039