Izvornik: Heller - Selected Piano Studies, Opus 45 & 46. Settling in Paris, he produced more than 160 published piano works. Stephen Heller.
Prijevod: Heller - Odabrani Piano studije, Opus 45. Klavir Metoda note. Piano Solo note. Srednji. Heller - Odabrani studij glasovira, Opus 45.