Ein Renishaw Raman Mikroskop im gemmologischen Labor: erste Erfahrungen bei der Anwendung. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1996.
Author(s): H.A. Haenni, L. Kiefert, J.-P. Chalain, I.C. Wilcock
A short synopsis of pearls: natural, cultured, imitation. Published in 1995.
Author(s): H.A. Haenni
Agee hydrothermal synthetic emeralds. Published in JewelSiam, 1995.
Author(s): H.A. Haenni, L. Kiefert
Preliminary results on Agee hydrothermal synthetic emeralds. Published in 1994.
Author(s): H.A. Haenni, L. Kiefert
Émeraudes synthétiques hydrothermales Agee – Hydrothermal-synthetische Smaragde von Agee. Published in 1994.
Author(s): H.A. Haenni, L. Kiefert, J.-P. Chalain
How to identify Douros synthetic rubies. Published in Jewellery News Asia, 1994.
Author(s): H.A. Haenni, K. Schmetzer
Structural and chemical investigations on shells and pearls of nacre-forming saltwater and freshwater bivalve molluscs. Published in Journal of Gemmology, 1994.
Author(s): H.A. Haenni
Rissfuellungen bei Diamanten – Les diamants traités. Published in 1993.
Author(s): E.P. Jegge
Spectroscopy and its application in gemmology. Published in 1993.
Author(s): H.A. Haenni
Das strahlende Blau der behandelten Topase. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1993.
Author(s): M. Huegi