G. J. Nohynek, H. Schaefer: Benefit and risk of organic ultraviolet filters. In: Regul. Toxicol. Pharmacol. Band33, Nr.3, 2001, S.285–299, doi:10.1006/rtph.2001.1476, PMID 11407932.
G. J. Nohynek, H. Schaefer: Benefit and risk of organic ultraviolet filters. In: Regul. Toxicol. Pharmacol. Band33, Nr.3, 2001, S.285–299, doi:10.1006/rtph.2001.1476, PMID 11407932.