著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Sulovsky, Vedran","Making the Holy Roman Empire holy : Frederick Barbarossa, Saint Charlemagne and the sacrum imperium",,Cambridge University Press,2024,Cambridge studies in medieval life and thought,,9781009203487,,https://cir.nii.ac.jp/crid/1130864315059269505