中国科学院数学与系统科学研究院期刊网
AMS
Nielsen Theory on 3-manifolds Covered by S2×R
Daciberg GONÇALVES, Peter WONG, Xue Zhi ZHAO
Acta Mathematica Sinica . 2015, (4): 615 -636 .  DOI: 10.1007/s10114-015-3742-6