Szilágyi András (szerk.): Ars Decorativa 18. (Budapest, 1999)

Maria FERENCZY: The formation of the Hopp-collection. On the 80th anniversary of the foundation of the Ferenc Hopp Museum of Eastern Asiatic Arts

3. Letter written by Ferenc Hopp from the steamer Ancona on the Indian Ocean to the employées of the Calderoni firm (excerpt)