Jones L, Provins A, Harper-Simmonds L, Holland M, Mills G, Hayes F, Emmett BA, Hall J, Sheppard LG, Smith R, et al. A review and application of the evidence for nitrogen impacts on ecosystem services. Ecosystem Services. 2014  ;7:76-88.

Jones MLM, Provins A, Harper-Simmonds L, Holland M, Mills G, Hayes F, Emmett BA, Hall J, Sheppard LJ, Smith R, et al. Using the Ecosystems Services Approach to value air quality. DEFRA; 2014.

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.

Wagg S, Mills G, Hayes F, Wilkinson S, Davies WJ. Stomata are less responsive to environmental stimuli in high background ozone in Dactylis glomerata and Ranunculus acris. Environmental Pollution. 2013  ;175:82-91.

Harmens H, Foan L, Simon V, Mills G. Terrestrial mosses as biomonitors of atmospheric POPs pollution: A review. Environmental Pollution. 2013  ;173:245-254.

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.

Wagg S, Mills G, Hayes F, Wilkinson S, Cooper D, Davies WJ. Reduced soil water availability did not protect two competing grassland species from the negative effects of increasing background ozone. Environmental Pollution. 2012  ;165:91-99.

Mills G, Hayes F, Simpson D, Emberson L, Norris D, Harmens H, Buker P. Evidence of widespread effects of ozone on crops and (semi-)natural vegetation in Europe (1990?2006) in relation to AOT40- and flux-based risk maps. Global Change Biology. 2011  ;17:592-613.

Mills G, Hayes F, Norris D, Hall J, Coyle M, Cambridge H, Cinderby S, Abbott J, Cooke S, Murrells T. Impacts of Ozone Pollution on Food Security in the UK: A Case Study for Two Contrasting years, 2006 and 2008. Defra; 2011. Available from: http://icpvegetation.ceh.ac.uk/ and http://uk-air.defra.gov.uk/library/

Mills G, Hayes F, Norris D, Hall J. Impacts of Ozone Pollution on Food Security in the UK: A Case Study for Two Contrasting years, 2006 and 2008. Defra; 2011. Available from: http://uk-air.defra.gov.uk/library/

Mills G, Hayes F, Norris D, Hall J. Impacts of Ozone Pollution on Food Security in the UK: A Case Study for Two Contrasting years, 2006 and 2008. Defra; 2011. Available from: http://icpvegetation.ceh.ac.uk/

Mills G, Pleijel H, Braun S, Buker P, Bermejo V, Calvo E, Danielsson H, Emberson L, I. Fernandez G, Grunhage L, et al. New stomatal flux-based critical levels for ozone effects on vegetation. Atmospheric Environment. 2011  ;45:5064-5068.

Harmens H, Norris DA, Cooper DM, Mills G, Steinnes E, Kubin E, Thoni L, Aboal JR, Alber R, Carballeira A, et al. Nitrogen concentrations in mosses indicate the spatial distribution of atmospheric nitrogen deposition in Europe. Environmental Pollution. 2011  ;159:2852-2860.

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

Mills G, Hayes F, Wilkinson S, Davies WJ. Chronic exposure to increasing background ozone impairs stomatal functioning in grassland species. Global Change Biology. 2009  ;15(6):1522-1533.

Hayes F, Mills G, Ashmore M. Effects of ozone on inter- and intra-species competition and photosynthesis in mesocosms of Lolium perenne and Trifolium repens. Environmental Pollution. 2009  ;157(1):208-214.

Dawnay L, Mills G. Relative effects of elevated background ozone concentrations and peak episodes on senescence and above-ground growth in four populations of Anthoxanthum odoratum L. Environmental Pollution. 2009  ;157:503-510.

Hayes F, Mills G, Harmens H, Norris D. Evidence of widespread ozone damage to vegetation in Europe (1990-2006). Bangor, UK.: Centre for Ecology and Hydrology; 2007.

Mills G, Hayes F, Jones MLM, Cinderby S.  Identifying ozone-sensitive communities of (semi-)natural vegetation suitable for mapping exceedance of critical levels. Environmental Pollution. 2007  ;146:736-743.

Hayes F, Jones MLM, Mills G, Ashmore M. Meta-analysis of the relative sensitivity of semi-natural vegetation species to ozone. Environmental Pollution. 2007  ;146:754-762.

Jones L, Hayes F, Mills G, Sparks T, Fuhrer F. Predicting community sensitivity to ozone, using Elleberg indicator values. Environmental Pollution. 2007  ;146:744-753.

Hayes F, Mills G, Williams P, Harmens H, Buker P. Impacts of summer ozone exposure on the growth and overwintering of UK upland vegetation. Atmospheric Environment. 2006  ;40:4088-4097.