Forrás: Beethoven. Henle Urtext Edition. Henle Urtext edition. Piano Sonata No.9 And No.10 Op.14. Sheet Music. PF.
Fordítás: Henle Urtext kiadás. Kotta. Piano Solo. Ludwig van Beethoven. Piano Sonatas No.9 in E Op.14, No.1 and No.10 in G Op.14, No.2.