Halvard Fausk, L. Gaunce Lewis, Peter May, The Picard group of equivariant stable homotopy theory, Advances in Mathematics Volume 163, Issue 1, 15 October 2001, Pages 17–33 (pdf)
Kevin K. Ferland, L. Gaunce Lewis, Jr., The -Graded Equivariant Ordinary Homology of -Cell Complexes with Even-Dimensional Cells for , Memoirs of the AMS 167 (2004) [ams:memo-167-794, 978-ISBN:1-4704-0392-8]