摘要:
sci-hub.se 参考文章(2)
Roger C. Lyndon, Cohomology Theory of Groups with a Single Defining Relation The Annals of Mathematics. ,vol. 52, pp. 650- ,(1950) , 10.2307/1969440
Richard G. Swan, Minimal resolutions for finite groups Topology. ,vol. 4, pp. 193- 208 ,(1965) , 10.1016/0040-9383(65)90064-9