24 January 2003 speech at the session "Le libre accès: quels enjeux pour les pays en développement" of the Conference "Open Access to Scientific and Technical Information: State of the Art and Future Trends" (Paris, 23-24 January 2003).
The textual version was published in "Information Services and Use", vol. 23 (2003), issue 2-3, p. 149-159.