C. West, 'Count Hugh of Troyes and the Territorial Principality in early Twelfth-Century Europe', English Historical Review 127 (2012), 523-548, open access [1] (页面存档备份,存于互联网档案馆)
C. West, 'Count Hugh of Troyes and the Territorial Principality in early Twelfth-Century Europe', English Historical Review 127 (2012), 523-548, open access [1] (页面存档备份,存于互联网档案馆)