Orthonormal polynomial vectors and least squares approximation for a discrete inner product. Van Barel, M.; Bultheel, A. — 1995 ETNA. Electronic Transactions on Numerical Analysis [electronic only]
On the fast reduction of symmetric rationally generated Toeplitz matrices to tridiagonal form. Frederix, K.; Gemignani, L.; Van Barel, M. — 2009 ETNA. Electronic Transactions on Numerical Analysis [electronic only]