Last year, a book of Maurizio Pallante (the movement La Decrescita Felice) was translated to French and published by Nature & Progress. Martine Cornil made an radio interview worth listening with the editors of the French edition:
http://www.natpro.be/nospublications/leseditionsdenatureprogres/decroissanceheureuse/index.html
MP3 of the interview (in French) for download or streaming
Some information about the décroissance (degrowth) movement in English:
- Bilancini, F. & Alessandro, S. (2010): Happy Degrowth vs Unhappy Growth. Presentation from Degrowth Conference Barcelona 2010 March 26-29, 2010
- Latouche, S. (2010). Editorial: Degrowth. Journal of Cleaner Production 18.