Vatican City. John Paul II (22 February 1996). Universi Dominici Gregis (页面存档备份,存于互联网档案馆). Apostolic constitution. Vatican City: VaticanPublishing House
"論世界在六日內的創造" http://www.newadvent.org/fathers/02106.htm (页面存档备份,存于互联网档案馆)(英文) Vatican opens up secrets of Index of Forbidden Books (页面存档备份,存于互联网档案馆). Heneghan