Previous Article Next Article Table of Contents Nature, Vol.374, No.6520, 318-319, 1995 DOI10.1038/374318a0 Export Citation Compendium of Practical Astronomy, Vol-1, Instrumentation and Reduction Techniques, Vol-2, Earth and Solar-System, Vol-3, Stars and Stellar-Systems, by G.D. Roth Hughes D Please enable JavaScript to view the comments powered by Disqus.
