Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Beethoven, Ludwig van and Brandenburg, Sieghard",Heiligenstädter Testament : Faksimile der Handschrift,,Beethoven-Haus,1999,Veröffentlichungen des Beethovenhauses in Bonn,,,,https://cir.nii.ac.jp/crid/1130282269792562560