中国科学院数学与系统科学研究院期刊网
(G, H)-Quasiregular Mappings and B-Harmonic Equations
Jin Fa CHEN(1),Ai Nong FANG(2)
Acta Mathematica Sinica, Chinese Series . 1999, (5): 883 -888 .  DOI: 10.12386/A1999sxxb0121