Z 7745
Klaus, Sabine Katharina: "Life is a hard struggle" : the Viennese piano maker Joseph Franz Ries (1792 - c. 1862) ; life, patents, and instruments / Sabine K. Klaus. – 2003. – Ill.
In: Early keyboard journal. – 21 (2003), S. [7]-44
Inv.-Nr. 05.292
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