The invention of blue and purple pigments in ancient times by H Berke
Page 47 in Part 5, Scientific Research in conservation of Ancient Sites on the Silk Road
Development of Ancient Synthetic Copper-Based blur and purple pigments. H Berke et al.
Page 56 in Part 5, Scientific Research in conservation of Ancient Sites on the Silk Road
Ishkor glazes of Uzbekistan. P Vandiver et al
Which has a quote that resounds with my work: The Asian view, predominant in China for the past thousand years as well as in contemporary Uzbekistan, is that replicas are not fakes and forgeries but a complement to a past tradition that is being revived, continued, and collected as an heir to that tradition.