1. Asymptotic symmetry and local behavior of semilinear elliptic equations with critical Sobolev growth,;L. Caffarelli;C. P. A. M.,1989
2. Weighted Hardy-Littlewood-Sobolev inequalities and system of integral equations,;W. Chen;Disc. Cont. Dyn. Sys.
3. Regularity of Solutions for a system of integral equations,;W. Chen;Comm. Pure and Appl. Anal.,2005
4. The best constant in some weighted Hardy-Littlewood-Sobolev inequality,;W. Chen;Proc. AMS,2008
5. Classification of positive solutions for nonlinear differential and integral systems with critical exponents,;W. Chen;Acta Mathematica Scientia,2009