Green Equilibrium Measures and Representations of an External Field. - A. L. Levin; Doron S. Lubinsky (J. Approx. Theory, 2001)

The Distribution of Zeros and Poles of Asymptotically Extremal Rational Functions for Zolotarev's Problem. - A. L. Levin; Edward B. Saff (J. Approx. Theory, 2001)