1. Positive polynomials on compact sets;Berr;Manuscripta Math.,2001
2. Matrix measures, moment spaces and Favard’s theorem for the interval [0,1] and [0,∞);Dette;Linear Algebra Appl.,2002
3. Hermitian matrices over polynomial rings;Djoković;J. Algebra,1976
4. I. Gohberg, P. Lancaster, L. Rodman, Matrix Polynomials. Computer Science and Applied Mathematics. Academic Press, Inc. [Harcourt Brace Jovanovich, Publishers], New York–London, 1982, xiv+409pp, ISBN:0-12-287160-X.
5. Le 17e problème de Hilbert pour les matrices;Gondard;Bull. Sci. Math.,1974