Authors: Hoare, Melvin1; Wills, Karen2
Source: Astronomy & Geophysics, Volume 41, Number 4, August 2000, pp. 4.10-4.13(1)
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Document Type: Research Article
Dept of Physics and Astronomy, University of Leeds, Leeds LS2 9JT;
Dept of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH.
Publication date: August 1, 2000