1. Bounds on ordered codes and orthogonal arrays;Barg;Mosc. Math. J.,2009
2. A non-commutative spectral theorem;Barker;Linear Algebra Appl.,1978
3. A direct approach to linear programming bounds for codes and TMS-nets;Bierbrauer;Des. Codes Cryptogr.,2007
4. An algebraic approach to the association schemes of coding theory;Delsarte;Philips Res. Rep. Suppl.,1973
5. D. Gijswijt, Matrix algebras and semidefinite programming techniques for codes, Ph.D. Thesis, University of Amsterdam, 2005.