1. Interpolation matrices;Belevitch;Philips Res. Rep.,1970
2. Monotone Matrix Functions and Analytic Continuation;Donoghue,1974
3. Hankel matrices and 2-apolarity;Fiedler;Notices Amer. Math. Soc.,1964
4. M. Fiedler, Hankel matrices, Loewner matrices and the special Cauchy interpolation problem, to appear.