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| David R Williams: drw@mssl.ucl.ac.uk Postdoctoral Research Fellow Solar & Stellar Physics Group Mullard Space Science Laboratory UCL Holmbury St Mary, Dorking, Surrey RH5 6NT, UK. T: +44 (0)1483 204211 F: +44 (0)1483 278312 W: http://www.mssl.ucl.ac.uk/~drw/ |