• 2 Memorial Library
• 1 Wisconsin Historical Society Library

• 2 Books

• 1 Doctrines
• 1 Eastern and Western Church
• 1 Orthodox Eastern Church
• 1 Polemics
• 1 Schism
• 1 Sources
• 1 Theology
• 1 Tractatus contra Graecos

• 1 Bayerische Akademie der Wissenschaften
• 1 John, of Damascus, Saint
• 1 Kloster Scheyern. Byzantinisches Institut
• 1 Kotter, Bonifatius, 1912-1987
• 1 Riedl, Andrea
• 1 Thum, Tobias, 1976-
• 1 Volk, Robert

• 2 Greek, Ancient (to 1453)
• 1 Latin

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