中国科学院数学与系统科学研究院期刊网
Regularity for Solutions to Elliptic Systems and Minima of Variational Integrals
Hong Ya GAO, Miao Miao JIA
Acta Mathematica Sinica, Chinese Series . 2017, (5): 847 -858 .  DOI: 10.12386/A2017sxxb0072