P. . BURNY, D. C. . PETRESCU, and R. M. . PETRESCU-MAG, “ORGANIC FARMING AND THE GREENING OF THE COMMON AGRICULTURAL POLICY MADE WALLOON AGRICULTURE BECOME MORE ENVIRONMENT FRIENDLY IN 2015”, Studia UBB Ambientum, vol. 61, no. 1-2, pp. 15–24, Dec. 2016.