Hostname: page-component-cb9f654ff-mx8w7 Total loading time: 0 Render date: 2025-09-07T05:33:15.615Z Has data issue: false hasContentIssue false

Concluding Remarks

Published online by Cambridge University Press:  08 February 2017

J. C. Pecker*
Affiliation:
Observatoire de Meudon, France

Abstract

Image of the first page of this content. For PDF version, please use the ‘Save PDF’ preceeding this image.'