1. “Olfactory and chemical characteristics of floral scents”, lecture presented at the 196th National ACS Meeting, Symposium on Progress in Essential Oil Research, Los Angeles, CA, 25-27 September 1988.
2. Vom Duft de Orchideen, p. 109, Editiones Roche, Basel (1993);
3. English edn: The Scent of Orchids, S. Elsevier, Amsterdam (1993).
4. Perfume and Flavor Materials of Natural Origin, S. Arctander, Elisabeth, NJ (1960).