On the directions of Borel of meromorphic functions of finite order > 1 2 Kwok Ping Lee — 1939 Compositio Mathematica
On variational formulations for the Stokes equations with nonstandard boundary conditions James H. Bramble; Ping Lee — 1994 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique