VAINERMAN, L. I. The portrait of a young man (from memory). Methods of Functional Analysis and Topology, [S. l.], v. 14, n. 2, p. 102–107, 2008. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/373. Acesso em: 4 feb. 2026.