中国科学院数学与系统科学研究院期刊网
Automorphism Groups of Torsion-free Groups of Rank 2 and Torsion-free Groups with Two Automorphisms
Chuan Gui MA(1);Zhao Ji ZHANG(
Acta Mathematica Sinica, Chinese Series . 1998, (4):  .  DOI: 10.12386/A1998sxxb0129