Beobachtungen an hitzebehandeltem Rubin mit künstlicher Rissheilung. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2001.
Author(s): H.A. Haenni
Diamants de type IIa et traitement HPHT: Identification. Published in Revue A.F.G., 2001.
Author(s): J.-P. Chalain
A glass imitation of blue chalcedony. Published in Journal of Gemmology, 2001.
Author(s): H.A. Haenni, S. Tien Wu, Y. Xingqiang, T. Wen-Po
Oriented inclusions in spinel from Madagascar. Published in Journal of Gemmology, 2000.
Author(s): K. Schmetzer, E. Guebelin, H.-J. Bernhardt, L. Kiefert
Identification of gemstone treatments with Raman spectroscopy. Published in Proceedings of SPIE, 2000.
Author(s): L. Kiefert, H.A. Haenni, J.-P. Chalain
Hauyn aus der Eifel – ein attraktiver Edelstein. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2000.
Author(s): L. Kiefert
SSEF to identify GE POL diamonds. Published in 2000.
Author(s): H.A. Haenni
Recognizing GE POL diamonds at SSEF. Published in 2000.
Author(s): H.A. Haenni
New spectral evidence for GE POL diamond detection. Published in Gems & Gemology, 2000.
Author(s): H.A. Haenni, J.-P. Chalain, E. Fritsch
Diamanten. Published in 2000.
Author(s): H.A. Haenni