1. Industrial Development Agency of Brazilian, III Notebook trends 2014/2015, http://www.abdi.com.br/Estudo/III%20Caderno%20de%20Tend%C3%AAncias%202014-2015.pdf, (accessed May 2014)
2. A. D. Hardy , R. I.Walton, R.Vaishnav, K. A.Myers, M. R.Power and D.Pirrie, in Physical Techniques in the Study of Art, Archaeology and Cultural Heritage, ed. D. Bradley and D. Creagh, Elsevier, Amsterdam, 1st edn, 2006, vol. 1, ch. 5, pp. 173–202
3. Brazilian Health Surveillance Agency, http://portal.anvisa.gov.br/wps/wcm/connect/dfa9b6804aee482bb7a1bfa337abae9d/Resolu%C3%A7%C3%A3o+RDC+n%C2%BA+211%2C+de+14+de+julho+de+2005.pdf?MOD=AJPERES, (accessed June 2014)
4. U.S. Food and Drug Administration, http://www.fda.gov/Cosmetics/GuidanceComplianceRegulatoryInformation/ucm074201.htm, (accessed June 2014)
5. Metals and arsenic in eye shadows