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This is the Author's Original Manuscript of an article published by Taylor & Francis in Communications in Algebra on July 6, 2015, available online: http://wwww.tandfonline.com/10.1080/00927872.2014.941470.
Barry, M.J.J. (2015) On a Question of Glasby, Praeger, and Xia, Communications in Algebra, 43:10, 4231-4246, DOI: 10.1080/00927872.2014.941470.