@book{ title = "Supplikensignatur und Briefexpedition an der römischen Kurie im Pontifikat Papst Calixts III.", author = "Pitz, Ernst", year = "1972", publisher = "Niemeyer", address = "Tübingen", language = "ger", howpublished = "print", isbn = "3484800623", keywords = "Verzeichnis,Callistus III, Pope,Catholic Church / Curia Romana", note = "Ln", series = "Bibliothek des Deutschen Historischen Instituts in Rom, 42", }