Books and Encyclopedia
* Aromatherapie in Wissenschaft und Praxis. Ed. Wolfgang Steflitsch. Stadelmann, 2013
* BI-Lexikon Heilpflanzen und Drogen, Ennet D., Leipzig 1990 [BI]
* British Herbal Pharmacopoeia [BHP83]
* CRC Handbook of Medicinal Herbs 1985 [CRC]
* Essential oil crops. Weiss, Edward A., Cab International, 1997
* Food Plants of the World. Van Wyk, Ben-Erik Portland Oregon 2005 [FPW]
* Herbal Drugs and Phytopharmaceuticals 2009 [Wichtl]
* Meaningful Scents around the World, Roman Kaiser, Zürich 2006 [MSW]
* Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004 [MPW]
* Perfume and flavor materials of natural origin, Steffen Arctander, 1960
* Scent and Chemistry, Günther Ohloff, Wilhelm Pickenhagen, Philip Kraft, Wiley-VCH, 2012 [SAC]
* Scent of the Vanishing Flora, Roman Kaiser, 2010 [SVF]
* The scent of orchids: olfactory and chemical investigations., Kaiser, R., Basel 1993