Weak-star density of polynomials. Donald Sarason — 1972 Journal für die reine und angewandte Mathematik
Multiplicative structure of de Branges's spaces. Benjamin A. Lotto; Donald Sarason — 1991 Revista Matemática Iberoamericana L. de Branges has originated a viewpoint one of whose repercussions has been the detailed analysis of certain Hilbert spaces of holomorphic functions contained within the Hardy space H of the unit disk (...).