@article {1234,
	title = {Temporal and among-site variability of inherent water use efficiency at the ecosystem level},
	journal = {Global Biogeochemical Cycles},
	volume = {23},
	year = {2009},
	month = {2009},
	issn = {0886-6236},
	doi = {10.1029/2008GB003233},
	author = {BEER, C. and Ciais, P. and Reichstein, M. and BALDOCCHI, D and Law, B. E. and Papale, D. and SOUSSANA, J.-F. and AMMANN, C and Buchmann, N. and Frank, D. and Gianelle, D. and JANSSENS, I. A. and Knohl, A. and K{\"O}STNER, B. and Moors, E. and Roupsard, O. and Verbeeck, H. and Vesala, T. and Williams, C. A. and Wohlfahrt, G.}
}
