Gemstones in the first millennium ADAlexandra Hilgner, Susanne Greiff, Dieter Quast · First published 2017Open the Tome
Die Dame mit der PhönixkroneSonja Filip, Alexandra Hilgner, Guje Kroh · First published 2013Open the Tome
Glass along the Silk Road from 200 BC to AD 1000Bettina Zorn, Alexandra Hilgner · First published 2010Open the Tome
