John Frederick Drinkwater (1998). "Gaul (Transalpine)". The Oxford Companion to Classical Civilization. Ed. Simon Hornblower and Antony Spawforth. Oxford University Press. Oxford Reference Online (页面存档备份,存于互联网档案馆).
John Frederick Drinkwater (1998). "Gaul (Transalpine)". The Oxford Companion to Classical Civilization. Ed. Simon Hornblower and Antony Spawforth. Oxford University Press. Oxford Reference Online (页面存档备份,存于互联网档案馆).