1. Ahel M, Jeličić I (2001) Phenazone Analgesics in Soil and Groundwater below a Municipal Solid Waste Landfill. In: Daughton CG and Jones-Lepp T (eds), American Chemical Society, Symposium series 791, Washington, DC, pp. 100–115.
2. Ahrer W, Scherwenk E, Buchberger W (2001) Determination of drug residues in water by the combination of liquid chromatography or capillary electrophoresis with electrospray mass spectrometry. J Chromatogr A 910:69–78.
3. Alder AC, McArdell CS, Golet EM, Ibric S, Molnar E, Nipales NS, Giger W (2001) In: Daughton CG and Jones-Lepp T (eds), American Chemical Society, Symposium series 791, Washington D.C, pp 56–69.
4. Alexy R, Kümpel T, Kümmerer K (2004) Assessment of degradation of 18 antibiotics in the Closed Bottle Test. Chemosphere 57:505–512.
5. Analgesics. In: An A-Z of Medicinal Drugs. Oxford University Press 2000. Oxford Reference online. Oxford University Press. York University (accessed 18 January 2007) online
http://www.oxfordreference.com/views/ENTRY.html?subview=Main&entry=t61.e207