Source: https://www.researchgate.net/profile/Julien_Pierart/publication/325852755_La_Cellule_autonome_d'avis_en_Developpement_durable_levier_de_la_transition_wallonne/links/5b28f3550f7e9b1d00353145/La-Cellule-autonome-davis-en-Developpement-durable-levier-de-la-transition-wallonne.pdf