On the invertibility of one integral operator. Armenian Journal of Mathematics, [S. l.], v. 14, n. 6, p. 1–10, 2022. DOI: 10.52737/18291163-2022.14.6-1-10. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/715.. Acesso em: 3 may. 2024.