Holy Fathers
Other languages
Abb Pater, Pope John Paul II
Catholic Encyclopedia:
Chronological Lists of Popes
Election of the Popes
Ex Cathedra
Infallibility
The List of Popes
Vicar of Christ
Crossing the Threshold of Hope
Documents, Writing, Articles etc:
Ordinatio Sacerdotalis: Exercise in Infallibility by Jeffrey Mirus
Papal Errors in the Ordinary Magisterium? by Regis Scanlon
Peter's Primacy, Father William G. Most
Peter in Rome, Church Fathers; ed. Joe Gallegos
Popes Through the Ages by Father Joseph Brusher
The Papacy: God's Gift to the Church by James Akin
The Primacy of the Successor of Peter in the Mystery of the Church by Joseph Cardinal Ratzinger
Was Peter Ever in Rome?, by Phil Porvaznik
Was Peter the First Pope?, by Art Kelly
Was Peter the First Pope?, Part II, by Art Kelly
Encyclicals
Encyclicals of Pope Paul VI
Encyclicals and Writings of Pope John XXIII
Encyclicals and Writings of Pope Pius XII
Gallery of The Roman Pontiffs
His Holiness Pope John Paul II
Pope John Paul II
Pope John Paul
Popes Through the Ages
The Papacy