中国科学院数学与系统科学研究院期刊网
The Fundamental Structure Theorem in Relative Twisting Hopf Modules and Relative Yetter-Drinfel'd Modules
Xiao Li FANG(1); Jin Qi LI(2)
Acta Mathematica Sinica, Chinese Series . 2007, (5): 969 -980 .  DOI: 10.12386/A2007sxxb0113