D.J. Benson.
Resolutions and Poincar\'e duality for finite groups.
(Warning: the TeX form of this document has some missing 
lines in the pictures. For a more complete document, see 
the Springer Lecture Notes volume)
In: Proceedings of the June 1990 Barcelona conference on 
Homotopy and Group Cohomology.
Springer Lecture Notes in Mathematics 1509, Springer-Verlag, 1992.
MR 93i:20057, ZB 745.55004