ČUČKOVIĆ, Željko; ŞAHUTOĞLU, S. Essential norm estimates for Hankel operators on convex domains in $\mathbb{C}^2$. MATHEMATICA SCANDINAVICA, [S. l.], v. 120, n. 2, p. 305–316, 2017. DOI: 10.7146/math.scand.a-25793. Disponível em: https://www.mscand.dk/article/view/25793. Acesso em: 17 jan. 2022.