Hauyn aus der Eifel – ein attraktiver Edelstein
Hauyn aus der Eifel – ein attraktiver Edelstein. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2000. Author(s): L. Kiefert
Multicomponent inclusions in Nacken synthetic emeralds
Multicomponent inclusions in Nacken synthetic emeralds. Published in Journal of Gemmology, 1999. Author(s): K. Schmetzer, L. Kiefert, H.-J. Bernhardt
Identification of filler substances in emeralds by infrared and Raman spectroscopy
Identification of filler substances in emeralds by infrared and Raman spectroscopy. Published in Journal of Gemmology, 1999. Author(s): H.A. Haenni
Raman Investigations on Two Historical Objects from Basel Cathedral: The Reliquary Cross and Dorothy Monstrance
Raman Investigations on Two Historical Objects from Basel Cathedral: The Reliquary Cross and Dorothy Monstrance. Published in Gems & Gemology, 1998, 34(2), 102-125.
Zur Färbung von Igmerald (synthetischer Smaragd, hergestellt von der I.G. Farbenindustrie)
Zur Färbung von Igmerald (synthetischer Smaragd, hergestellt von der I.G. Farbenindustrie). Published in GZ, 1998. Author(s): K. Schmetzer, L. Kiefert
The colour of Igmerald: I.G. Farbenindustrie flux-grown synthetic emerald
The colour of Igmerald: I.G. Farbenindustrie flux-grown synthetic emerald. Published in Journal of Gemmology, 1998. Author(s): K. Schmetzer, L. Kiefert
Im Hydrothermalverfahren gezüchtete synthetische Smaragde aus China
Im Hydrothermalverfahren gezüchtete synthetische Smaragde aus China. Published in GZ, 1998. Author(s): K. Schmetzer, L. Kiefert, H.-J. Bernhardt, Z. Beili
Distinction of taaffeite and musgravite
Distinction of taaffeite and musgravite. Published in Journal of Gemmology, 1998. Author(s): L. Kiefert, K. Schmetzer
Détermination de substances de remplissage dans les émeraudes
Détermination de substances de remplissage dans les émeraudes. Published in Revue A.F.G., 1998. Author(s): J.-P. Chalain, H.A. Haenni, L. Kiefert
A Raman microscope in the gemmological laboratory: first experiences of application
A Raman microscope in the gemmological laboratory: first experiences of application. Published in Journal of Gemmology, 1997. Author(s): H.A. Haenni, L. Kiefert, J.-P. Chalain