Source: https://www.researchgate.net/profile/Julien-Penin/publication/255599313_Entre_incitation_et_coordination_Repenser_le_role_du_brevet_d'invention_dans_une_economie_fondee_sur_la_connaissance/links/00b7d53b3c29f77444000000/Entre-incitation-et-coordination-Repenser-le-role-du-brevet-dinvention-dans-une-economie-fondee-sur-la-connaissance.pdf