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Jaffer Y, Clark TA, Pearce P, Parsons SA.Jaffer Y, et al. Among authors: parsons sa.Water Res. 2002 Apr;36(7):1834-42. doi: 10.1016/s0043-1354(01)00391-8.Water Res. 2002.PMID: 12044083
Thornton A, Pearce P, Parsons SA.Thornton A, et al. Among authors: parsons sa.Water Res. 2007 Jan;41(2):433-9. doi: 10.1016/j.watres.2006.10.021. Epub 2006 Dec 11.Water Res. 2007.PMID: 17161445