Stomatal conductance of forest species after long-term exposure to elevated CO2 concentration: a synthesis. - Medlyn,B..E..; Barton,C..V..M..; Broadmeadow,M..S..J..; Ceulemans,R..; De Angelis,P..; Forstreuter,M..; Freeman,M..; Jackson,S..B..; Kellomaki,S..; Laitat,E..; Rey,A..; Roberntz,P..; et al. (New Phytologist, 2001)