MIRZAKHANYAN, N.E.; PILIPOSYAN, H.V. ON A QUESTION OF A. SOZUTOV. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 52, n. 2 (246), p. 88–92, 2018. DOI: 10.46991/PYSU:A/2018.52.2.088. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol52_no2_2018_pp088-092. Acesso em: 20 may. 2024.