ZUKHOVITSKII, S. I. Just people of the world. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 11, p. 1446–1447, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5197. Acesso em: 5 dec. 2025.