Beerling, D.J., Heath, J., Woodward, F.I. and Mansfield, T.A.  1996.  Drought-CO2 interactions in trees: observations and mechanisms.  New Phytologist 134: 235-242.

Heath, J.  1998.  Stomata of trees growing in CO2-enriched air show reduced sensitivity to vapour pressure deficit and drought.  Plant, Cell and Environment 21: 1077-1088.

Heath, J., Ayres, E., Possell, M., Bardgett, R.D., Black, H.I.J., Grant, H., Ineson, P. and Kerstiens, G.  2005.  Rising atmospheric CO2 reduces sequestration of root-derived soil carbon.  Science 309: 1711-1713

Heath, J. and Kerstiens, G.  1997.  Effects of elevated CO2 on leaf gas exchange in beech and oak at two levels of nutrient supply: consequences for sensitivity to drought in beech.  Plant, Cell and Environment 20: 57-67.

Possell, M., Heath, J., Hewitt, C.N., Ayres, E. and Kerstiens, G.  2004.  Interactive effects of elevated CO2 and soil fertility on isoprene emissions from Quercus robur.  Global Change Biology 10: 1835-1843.