TY  - BOOK
AU  - Stefanos Karampelas, Lore Kiefert, Danilo Bersani, Peter Vandenabeele
TI  - Gems and Gemmology
SN  - 9783030354497
PB  - Springer
UR  - https://link.springer.com/openurl?genre=book&isbn=978-3-030-35449-7
ER  -