*[http://en.wikipedia.org/wiki/Arius Wikipedia : Arius] *[http://www.newadvent.org/cathen/01718a.htm Catholic Encyclopedia: Arius]*[http://www.fourthcentury.com/index.php/arius-chart The Complete Extant Works of Arius]*[http://www.newadvent.org/fathers/28161.htm St. Athanasius' ''Discourse against the Arians'']*[http://www.ccel.org/ccel/schaff/npnf202.ii.iv.vii.html Constantine's ''Letter to Alexander and Arius'']