@Article{bg-6-1423-2009, AUTHOR = {Keenan, T. and Garc\'{\i}a, R. and Friend, A. D. and Zaehle, S. and Gracia, C. and Sabate, S.}, TITLE = {Improved understanding of drought controls on seasonal variation in Mediterranean forest canopy CO$_{2}$ and water fluxes through combined in situ measurements and ecosystem modelling}, JOURNAL = {Biogeosciences}, VOLUME = {6}, YEAR = {2009}, NUMBER = {8}, PAGES = {1423--1444}, URL = {http://www.biogeosciences.net/6/1423/2009/}, DOI = {10.5194/bg-6-1423-2009} }