Autor de: Guerras santas... 2013: (orelha: professor na Penn State University e na Baylor University; ficha cat.: d.n.)

http://authorities.loc.gov 6/11/2014: (d.n., rem.)

http://viaf.org/processed/BAV%7CADV12115330: (d.n.)

http://viaf.org/processed/DNB%7C131843524: (d.n., rem.)