Astron. Astrophys. 326, 113-129 (1997)

Acknowledgements

I would like to thank Prof. R.J. Tayler for constructive comments on an earlier version of this paper, Prof. V.G. Gurzadyan for enlightening discussions and some important suggestions, Simon Goodwin for helping me with the English and the referee Daniel Pfenniger for comments that helped improve the presentation. I would also like to thank Henry Kandrup for a useful discussion that helped clarify some of my ideas on the subject of this paper and Douglas Heggie for helpful communication. This work was undertaken while the author was supported by a Foreign and Commonwealth Office Chevening scholarship.

© European Southern Observatory (ESO) 1997

Online publication: April 20, 1998
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