1. R.Fernández-Alba and A.Agüera , in Encyclopedia of Analytical Science , ed. P. Worsfold , A. Townshend and C. Poole , Elsevier , Amsterdam , 2nd edn, 2005 , vol. 6 , pp. 197–202
2. Scientific Committee on Consumer Safety , Opinion on Nitrosamines and Secondary Amines in Cosmetic Products , 2012
3. Fifteenth Commission Directive 92/86/EEC of 21 October 1992, Adapting to Technical Progress Annexes II, III, IV, V, VI and VII of Council Directive 76/768/EEC on the Approximation of the Laws of the Member States Relating to Cosmetic Products , 1992
4. Regulation (EC) No 1223/2009 of the European Parliament and of the Council of 30 November 2009 on Cosmetic Products, and its Successive Amendments , 2009