* [http://www.documentacatholicaomnia.eu/01_01_0309-0310-_Eusebius,_Sanctus.html Opera Omnia] {{Wayback|url= http://www.documentacatholicaomnia.eu/01_01_0309-0310-_Eusebius,_Sanctus.html |date=20091002111205 }} * [http://www.newadvent.org/cathen/05615b.htm Catholic Encyclopedia: ''Pope St. Eusebius''] {{WebCite|url=https://www.webcitation.org/68byURSXj?url=http://www.newadvent.org/cathen/05615b.htm |date=20120622130936 |dateformat=iso }}