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Zechiel-Eckes, Klaus: Die Concordia canonum des Cresconius 1. - . - Frankfurt am Main: Lang, 1992. - XXXI, 300 S., ISBN 978-3-631-44932-5 (Freiburger Beiträge zur mittelalterlichen Geschichte ; 5)
Zechiel-Eckes, Klaus: Die Concordia canonum des Cresconius 2. - . - Frankfurt am Main: Lang, 1992. - S. 303 - 854 (Freiburger Beiträge zur mittelalterlichen Geschichte ; 5)