Izvornik: 24 Studies, Opus 33. Albreckt Blumenstengel. 24 Studies, Opus 33 composed by Albreckt Blumenstengel. Viola sheet music.
Prijevod: 24 Studije, Opus 33. 24 Studije, opus 33 skladao Albreckt Blumenstengel. Viola note. 1835-1895. Uredio Wiemann. Za violu solo.