Probing the fossil record of disk galaxy evolution in M33 Barker, M. ; Ferguson, A. ; Cole, A. ; Ibata, R. ; Irwin, M. ; Lewis, G. ; Smecker-Hane, T. ; Tanvir, N. Abstract Publication: The Galaxy Disk in Cosmological Context Pub Date: March 2009 Bibcode: 2009IAUS..254P...9B