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by Walker, Sara Imari; Davies, Paul C. w.; Ellis, George F. r.
by Ellis, George F. R.; Williams, R. M.; Carfora, Mauro
by George F. R. Ellis , Roy Maartens , Malcolm A. H. MacCallum
by Edited by Jeff Murugan , Amanda Weltman , George F. R. Ellis
by Stephen W. Hawking; George F. R. Ellis
by Murphy, Nancey; Ellis, George F. r.; O'Connor, Timothy
by Krasinski, Andrzej; Ellis, George F. r.; Maccallum, Malcolm
by Ellis, George F. R.; Williams, Ruth M.