AKTURK, S.; ASHYRALYEV, A. The structure of fractional spaces generated by the two-dimensional difference operator on the half plane. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 8, p. 1019–1032, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1614. Acesso em: 27 apr. 2025.