Media type: E-Article Title: VI. Conclusion Contributor: Pecker, Jean-Claude imprint: Elsevier BV, 1999 Published in: Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy Language: English DOI: 10.1016/s1287-4620(99)80146-x ISSN: 1287-4620 Keywords: General Physics and Astronomy ; General Chemistry Origination: Footnote: