KARAKHANYAN, I. M.; KARAKHANYAN, M. I. SUBNORMALITE OF BANACH ALGEBRA. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 42, n. 1 (215), p. 10–17, 2023. DOI: 10.46991/PYSU:A/2008.42.1.010. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol42_no1_2008_p010-017. Acesso em: 22 jul. 2024.