Izvornik: Twelve studies for the piano. Paris, Troupenas, 1838 - Autograph manuscript. Opus 26 - 2nd suite, Paris 1838 and autograph MS.
Prijevod: Dvanaest studija za klavir. Paris, Troupenas 1838 - Autograph rukopis. Opus 26 - 2. suite, Paris 1838, a autogram MS. Paris 1838.