Archaeo-environmental studies of cultivation terraces in the Enveig Mountain (Cerdagne) in Eastern Pyrenees (France) - Bal, M. C. (Charcoals from the Past. Cultural and Palaeoenvironmental Implications. Proceedings of the Third International Meeting of Anthracology, Cavallino - Lecce (Italy), June 28th - July 1st 2004., 2008)