[6: European Committee of the Regions, Opinion on Socioeconomic structural change in Europe's coal regions, 136th plenary session, 7-9 October 2019, ECON-VI/041.]
Il-Kumitat Ewropew tar-Reġjuni, Opinjoni dwar il-Bidla strutturali soċjoekonomika fir-reġjuni karboniferi fl-Ewropa, sessjoni plenarja Nru 136, 7-9 ta' Ottubru 2019, ECON-VI/041.]