VAKARCHUK, S. B. Reconstruction of linear functionals on classes of analytic functions of two variables on the basis of generalized information. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 1, p. 32–37, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5779. Acesso em: 5 dec. 2025.