NAVOYAN, Kh.V.; NAVOYAN, V.Kh. ON THE CONTINUITY OF EXTREMAL LENGTH. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 47, n. 1 (230), p. 13–16, 2013. DOI: 10.46991/PYSU:A/2013.47.1.013. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol47_no1_2013_pp013-016. Acesso em: 23 nov. 2024.