http://revel.unice.fr/eriep/index.html?id=3495, accessed June 13, 2015.
Section 3.3: There is a little bit of literature on French national cluster policy that deserves a brief review or at least reference here (e.g., BRETTE/CHAPPOZ 2007, DURANTON ET AL. 2010, LONGHI/ROCHHIA 2013).