Broadmeadow, M.S.J., Heath, J. and Randle, T.J.  1999.  Environmental limitations to O3 uptake - some key results from young trees growing at elevated CO2 concentrations.  Water, Air, and Soil Pollution 116: 299-310.

Broadmeadow, M.S.J. and Jackson, S.B.  2000.  Growth responses of Quercus petraea, Fraxinus excelsior and Pinus sylvestris to elevated carbon dioxide, ozone and water supply.  New Phytologist 146: 437-451.

Crookshanks, M., Taylor, G. and Broadmeadow, M.  1998.  Elevated CO2 and tree root growth: contrasting responses in Fraxinus excelsior, Quercus petraea and Pinus sylvestris.  New Phytologist 138: 241-250.