HAUSSMANN, W. Differentiable Tchebycheff subspaces and Hermite interpolation. Annales Fennici Mathematici, [S. l.], v. 4, n. 1, p. 75–83, 1979. DOI: 10.5186/aasfm.1978-79.0408. Disponível em: https://afm.journal.fi/article/view/134338. Acesso em: 25 nov. 2024.