MIRZAKHANIAN, N. E. ABOUT SOME SIGNS OF PSEUDORADINNULIIY OL TOPOLOGICAL SPACES. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 34, n. 2 (193), p. 120–122, 2000. DOI: 10.46991/PYSUA.2000.34.2.120. Disponível em: https://journals.ysu.am/proceedings-phys-math/article/view/vol34_no2_2000_pp120-122. Acesso em: 12 jun. 2026.