Interpolatory integration rules and orthogonal polynomials with varying weights. - Thomas Bloom; Doron S. Lubinsky; H. Stahl (Numer. Algorithms, 1992)

Asymptotic zero distribution of biorthogonal polynomials. - Doron S. Lubinsky; Avraham Sidi; H. Stahl (J. Approx. Theory, 2015)