中国科学院数学与系统科学研究院期刊网
AMS
The Chen–Ruan Cohomology of Almost Contact Orbifolds
Fan DING, Yun Feng JIANG, Jian Zhong PAN
Acta Mathematica Sinica . 2010, (1): 77 -88 .  DOI: 10.1007/s10114-010-6623-z