Harding, H. A. Analysis of Form in Beethoven Sonatas
Thayer, Alexander W. The Life of Ludwig Van Beethoven (Vol. 1)
Thayer, Alexander W. The Life of Ludwig Van Beethoven (Vol. 3)
Grove's Dictionary of Music and Musicians. Volume 2 (F-L)
Berlioz, Hector. a Critical Study of Beethoven's Nine Symphonies
Thayer, Alexander W. The Life of Ludwig Van Beethoven (Vol. 2)
Grove's Dictionary of Music and Musicians. Volume 3 (M-P)
Grove's Dictionary of Music and Musicians. Volume 1 (A-E)
Grove's Dictionary of Music and Musicians. Volume 6 (American Supplement)