Manifesto Appeal of the Nobel Prizewinners [Laureates].Le Manifeste-Appel des Prix Nobel. El manifiesto-llamamiento de los premios Nobel. Manifesto Appeal.Archived 2006-05-14 at the Wayback Machine 1981.
survie.org
"La campagne Survie : d’où vient-elle ? que veut-elle?" Online posting. Survie. 1996.
web.archive.org
Manifesto Appeal of the Nobel Prizewinners [Laureates].Le Manifeste-Appel des Prix Nobel. El manifiesto-llamamiento de los premios Nobel. Manifesto Appeal.Archived 2006-05-14 at the Wayback Machine 1981.
