Yelle, S., Beeson, R.C., Jr., Trudel, M.J and Gosselin, A.  1989.  Acclimation of two tomato species to high atmospheric CO2. I. Sugar and starch concentrations.  Plant Physiology 90: 1465-1472.

Yelle, S., Beeson, R.C., Jr., Trudel, M.J. and Gosselin, A.  1990.  Duration of CO2 enrichment influences growth, yield, and gas exchange of two tomato species.  Journal of the American Society for Horticultural Science 115: 52-57.