Continuity properties of best analytic approximation. N.J. Young; V.V. Peller — 1997 Journal für die reine und angewandte Mathematik
Numerical Algorithms for the Nevanlinna-Pick Problem. A.C. Allison; N.J. Young — 1983 Numerische Mathematik
Tracking poles and representing Hankel operators directly from data. P.G. Spain; N.J. Young; J.W. Helton Numerische Mathematik