1. 1. Römpp Lexikon, 9th edition, Falbe J, Regitz M (eds): vol. 6, 1992: 3886.
2. 2. Martindale, 29th edition, Reynolds J E F (ed): 1989: 1554 - 1555, 1610.
3. Zink ricinoleate: sensitizer in deodorants.;Dooms-Goossens;Contact Dermatitis,1987
4. Factors related to the developement of sensitization to green coffee and castor bean allergens among coffee workers.;Romano;Clin Exp Allergy,1995
5. 5. Scheuer B & Von Bülow V . Liste Inhaltsstoffe 1999. CD-ROM bits at work GmBH.