Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Schultze, Clemens","Czerny op. 824 : practical method for playing in correct time for piano, four-hands",,G. Schirmer,1930,Schirmer's library of musical classics,,,,https://cir.nii.ac.jp/crid/1130000796180289280