Mills G, Wagg S, Harmens H. Ozone pollution: Impacts on ecosystem services and biodiversity. Bangor, UK.: Centre for Ecology and Hydrology; 2013. Available from: http://icpvegetation.ceh.ac.uk/publications/thematic.html.

Hayes F, Williamson J, Mills G. Ozone pollution affects flower numbers and timing in a simulated BAP priority calcareous grassland community. Environmental Pollution. 2012  ;163:40-47.

Harmens H, Mills G. Ozone pollution: Impacts on carbon sequestration in Europe. Bangor, UK.: Centre for Ecology and Hydrology; 2012.

Mills G, Harmens H. Ozone pollution: a hidden threat to food security. ICP Vegetation Coordination Centre; 2011.