Catholic Encyclopedia - Sergius and Bacchus were soldiers, martyred in the Diocletian persecution in about 303. Universally venerated in the East. Feast day: 7 October. - http://www.newadvent.org/cathen/13728a.htm
The Passion of SS. Serge and Bacchus - John Boswell's translation from the Greek. The story of their martyrdom, illustrated with an ikon. - http://www.cs.cmu.edu/afs/cs/user/scotts/ftp/wpaf2mc/serge.html
Military Martyrs - Information on the cultus of the late Roman martyrs SS. Sergius and Bacchus. Includes a translation of the Passion of SS. Sergius and Bacchus from the Acta Sanctorum. Also ikon, bibliography. - http://www.ucc.ie/milmart/Sergius.html