Iоkhvіdоv I. S. Continuation of Teplitz forms preserving the number of positive squares. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 18, n. 3, p. 40–50, 1966. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8735. Acesso em: 6 dec. 2025.