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The following entries come from Oxford Bibliographies:
Gender and Art in the Middle Ages - Includes section on ‘The Virgin Mary and the Holy Family’
Icons - Includes section on "Virgin Mary"
Mary - From Oxford Bibliographies
Mary in Islam - From Oxford Bibliographies
Saints and Mystics: After Trent - Includes section on "The Virgin Mary"
From the Encyclopedia of Religion (2nd ed.):
Mary: An Overview - From the Encyclopedia of Religion (2nd ed.).
Mary: Feminist Perspectives - From the Encyclopedia of Religion (2nd ed.)
From the Catechism of the Catholic Church
"He was conceived by the Holy Spirit, and born of the Virgin Mary," Paragraph 2
"I believe in the Holy Catholic Church," Paragraph 6. Mary - Mother of Christ, Mother of the Church
Apostolic Constitutions
Apostolic Letters
Encyclicals
Lumen Gentium
See Chapter 8 of Lumen Gentium, entitled "The Blessed Virgin Mary, the Mother of God, in the Mystery of Christ and of the Church"