FELLER , M. N. Reserve of harmonic functions of the infinite number of variables. III. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 3, p. 417–423, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8111. Acesso em: 5 dec. 2025.