1. Infinite Hankel block matrices and related extension problems;Adamjan;Am. Math. Soc. Transl.,1978
2. Approche Polynomiale Des Systemes Lineaires Stationnaires Causaux. Application a la Representation Cyclique. Research Report No. 142;Baratchart,1982
3. On the parametrization of linear constant systems;Baratchart;SIAM J. Control,1985
4. Optimal HANKEL-norm model reductions: multivariable systems;Kung;IEEE Trans. Autom. Control,1981
5. Robust multivariable control system design using optimal reduced order plant models;Limebeer,1983