Two results in metrical diophantine approximation Kunrui YU Seminaire de Théorie des Nombres de Bordeaux
A generalization of Mahler's classification to several variables. Kunrui Yu — 1987 Journal für die reine und angewandte Mathematik
Bounds for the solutions of S-unit equations and decomposable form equations Kálmán Győry; Kunrui Yu — 2006 Acta Arithmetica