1. EEA. Europe’s environment. The fourth assessment. Copenhagen: European Environment Agency; 2007. 452 pp.
2. See p. 9 in: Fingas M, editor. Oil spill science and technology. Amsterdam, Elsevier; 2011.
3. EEA (2007) op. cit.
4. NRC. Oil in the sea III. Inputs, fates, and effects. Washington, The National Academies Press; 2003.
5. Merian E, Anke M, Ihnat M, Stoeppler M. editors. Elements and Their Compounds in the Environment. 2nd ed. Weinheim, Wiley-VCH; 2004.