Regularity properties of the Stern enumeration of the rationals. Reznick, Bruce — 2008 Journal of Integer Sequences [electronic only]
Uniform denominators in Hilbert's Seventeenth Problem. Bruce Reznick — 1995 Mathematische Zeitschrift
A quantitative version of Hurwitz' theorem on the arithmetic-geometric inequality. Bruce Reznick — 1987 Journal für die reine und angewandte Mathematik
Real Zeros of Positive Semidefinite Forms. I. Bruce Reznick; M.-D. Choi; T.-Y. Lam — 1980 Mathematische Zeitschrift