Gem engraving in Britain from Antiquity to the Present : with a catalogue of the British engraved gems in The State Hermitage Museum.

von Kagan, Julia
British Archaeological Reports, British Ser. 514
Oxford : Archaeopress, 2010.
Umfang/Format: IX, 495 S. : Abb., 1 CD-ROM ; 30 cm.

Sud'ba odnoj kollekcii : Le destin d'une collection. 500 reznych kamnej iz kabineta Gercoga Ordeanskogo. 500 pierres gravées du cabinet du Duc d'Orleans.

von Kagan, Julia
Sankt-Peterburg : Gosudarstvennyj Ėrmitaž, 2001.
Umfang/Format: 231 p. : ill. ; 29 cm.