Tree-ring Δ13C reveals the impact of past forest management on water-use efficiency in a Mediterranean oak coppice in Tuscany (Italy)Giovanni Di Matteo, Paolo De Angelis, Enrico Brugnoli, Paolo Cherubini and Giuseppe Scarascia-MugnozzaAnn. For. Sci., 67 5 (2010) 510DOI: https://doi.org/10.1051/forest/2010012