Index analyticus Codicis canonum ecclesiarum orientalium.
Edited by Ivan Zuzek.
Pontificium Instittum Orientalium Studiorum, 1992.
A subject index to the Code of Canons of the Eastern Churches with almost one thousand entries. While the index is written entirely in Latin, it is possible for students not fluent in Latin to understand many of the terms (e.g. “Invaliditas” for invalidity).