1. , Proceedings, VIIIth International Congress of Essential Oils, Cannes, 1980, p. 132–137, Fedarom, Grasse, 1982.
2. [3a] Vom Duft der Orchideen, Editiones Roche, Basel, 1993 p. 109;
3. engl. ed.: The Scent of Orchids, Elsevier, Amsterdam, 1993; without data for 9 and 11.
4. ACS Symposium;Kaiser,1993