(2019). Modern Piano Improvisation: 15 easy pieces for playing & improvising / Julia Hülsmann. Advance Music.
Chicago-Zitierstil (17. Ausg.)Modern Piano Improvisation: 15 Easy Pieces for Playing & Improvising / Julia Hülsmann. Mainz: Advance Music, 2019.
MLA-Zitierstil (8. Ausg.)Modern Piano Improvisation: 15 Easy Pieces for Playing & Improvising / Julia Hülsmann. Advance Music, 2019.
警告：这些引文格式不一定是100％准确.