Crous, K.Y., Reich, P.B., Hunter, M.D. and Ellsworth, D.S. 2010. Maintenance of leaf N controls the photosynthetic CO2 response of grassland species exposed to 9 years of free-air CO2 enrichment. Global Change Biology 16: 2076-2088.

Ellsworth, D.S., Reich, P.B., Naumburg, E.S., Koch, G.W., Kubiske, M.E. and Smith, S.D. 2004. Photosynthesis, carboxylation and leaf nitrogen responses of 16 species to elevated pCO2 across four free-air CO2 enrichment experiments in forest, grassland and desert. Global Change Biology 10: 2121-2138.

Nie, D., He, H., Kirkham, M.B. and Kanemasu, E.T. 1992. Photosynthesis of a C3 grass and a C4 grass under elevated CO2. Photosynthetica 26: 189-198.

Song, Y., Yu, J. and Huang, B. 2014. Elevated CO2-mitigation of high temperature stress associated with maintenance of positive carbon balance and carbohydrate accumulation in Kentucky bluegrass. PLOS ONE 9: e89725.

Van den Berge, J., Naudts, K., Janssens, I.A., Ceulemans, R. and Nijs, I. 2011. Does the stress tolerance of mixed grassland communities change in a future climate? A test with heavy metal stress (zinc pollution). Environmental Pollution 159: 3294-3301.

Zhuang, L., Yang, Z., Fan, N., Yu, J. and Huang, B. 2019. Metabolomic changes associated with elevated CO2-regulation of salt tolerance in Kentucky bluegrass. Environmental and Experimental Botany 165: 129-138.