Orthogonal polynomials, reproducing kernels, and zeros of optimal approximants. - Catherine Bénéteau; Dmitry Khavinson; Alan A. Sola; Constanze Liaw; Daniel Seco (J. Lond. Math. Soc., 2016)

Simultaneous zero-free approximation and universal optimal polynomial approximants. - Catherine Bénéteau; Oleg Ivrii; Myrto Manolaki; Daniel Seco (J. Approx. Theory, 2020)