1. Hoàng Xuân Phú, Outer Γ-Convexity in Vector Spaces, Numerical Functional Analysis and Optimization, Vol. 29, No. 7&8, pp. 835-854, 2008
2. Hoàng Xuân Phú, Supremizers of Inner γ-Convex Functions, Mathematical Methods of Operations Research, Vol. 67, No. 2, pp. 207-222, 2008
3. Hoang Duc Minh, Hans Georg Bock, Hoàng Xuân Phú, Johannes P. Schlöder, Fast Numerical Methods for Simulation of Chemically Reacting Flows in Catalytic Monoliths, in Modeling, Simulation and Optimization of Complex Processes, Editors: H.\ G.\ Bock et al., pp. 371--380, Springer, Berlin--Heidelberg, 2008