Dippery, J.K., D.T. Tissue, R.B. Thomas and B.R. Strain. 1995. Effects of low and elevated CO2 on C3 and C4 annuals. I. Growth and biomass allocation. Oecologia 101: 13-20.

Ward, J.K. and B.R. Strain. 1997. Effects of low and elevated CO2 partial pressure on the growth and reproduction of Arabidopsis thaliana from different elevations. Plant, Cell and Environment 20: 254-260.

Ward, J.K. and B.R. Strain. 1999. Elevated CO2 Studies: Past, present and future. Tree Physiology 19:211-220. (article in pdf)

Ward, J.K., D.T. Tissue, R.B. Thomas and B.R. Strain. 1999. Comparative responses of model C3 and C4 plants to drought in low and elevated CO2. Global Change Biology 5:857-867. (article in pdf)

Ward, J.K., J. Antonovics, R. B. Thomas and B.R. Strain. 2000. Is atmospheric CO2 a selective agent on model C3 annuals? Oecologia. 123:330-341. (article in pdf)