Karakhanian, M.I. “ALMOST PERIODICITY IN SPECTRAL ANALYSIS REPRESENTATIONS INDUCED BY GENERALIZED SHIFT OPERATION”. Proceedings of the YSU A: Physical and Mathematical Sciences 46, no. 3 (229) (December 1, 2012): 9–13. Accessed July 22, 2024. https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol46_no3_2012_pp009-013.