Evapotranspiration of a declining Quercus robur (L.) stand from 1999 to 2001. I. Trees and forest floor daily transpiration Caroline Vincke, Nathalie Breda, André Granier and Freddy Devillez Ann. For. Sci., 62 6 (2005) 503-512 DOI: 10.1051/forest:2005055