Claude Piron (born 1931), a linguist and a psychologist, was a translator for the United Nations (from Chinese, English, Russian and Spanish into French) from 1956 to 1961. After leaving the UN he worked for the World Health Organization all over the world, as well as being a prolific author of Esperanto works. He has spoken Esperanto since childhood and has used Esperanto in many countries, including Japan, the People's Republic of China, Uzbekistan, Kazakhstan, … Wikipedia
The definitive Wikipedia entry for Claude Piron. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Claude_Piron
Textes de Claude Piron, ancien traducteur l'ONU et l'OMS, psychothrapeute, ex-enseignant charg de cours l'Universit de Genve entre 1973 et 1994 (psychologie et sciences de l'Education) claudepiron.free.fr
Textes publiés par Claude Piron dans ses deux domaines de travail: communication internationale (il a été traducteur à l'ONU et à l'OMS) et psychologie (il est psychologue-psychothérapeute), ainsi que sur l'esp&ea www.claude-piron.ch/englishindex.htm
Italiano Aspetti psicologici del problema linguistico mondiale e dell'esperanto Intervista a Claude Piron Troppo faciloni con le lingue LInglese prima lingua nella Svizzera orientale: necessit o puro servilismo? claudepiron.free.fr/articles.htm
La lingva defio La teksto i-sube afiita prezentas en Esperanto eltiraojn el la franclingva libro de Claude Piron "Le dfi des Langues", kun resumo de la partoj ne reproduktitaj. www.translationdirectory.com/esperanto.htm
...5 clicks from http://www.claude-piron.ch/languages.html 3 clicks from http://esperantolobby.org/ Comments & Responses Show: all comments excellent (+10 or better) great (+5 or... youtube.com/watch?v=_YHALnLV9XU