DANIELYAN, I. E.; MIKAELYAN, G. v. NEW REPRESENTATION OF SLOWLY VARYING FUNCTIONS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 35, n. 1 (195), p. 47–52, 2001. DOI: 10.46991/PYSUA.2001.35.1.047. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol35_no1_2001_pp047-052. Acesso em: 21 jan. 2026.