1. Homological Dimension of Discrete Groups;Bieri;Queen Mary College Mathematics Notes,1976
2. Cohomology of Groups;Brown,1982
3. Homological Algebra;Cartan,1956
4. Extensions centrales non residuellement finies de groupes arithmetiques;Deligne;C. R. Acad. Sci. Paris,1978
5. An extension of Tate cohomology to a class of infinite groups;Farrell;J. Pure Appl. Alg.,1977