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distribution
Finnie, T.J.R., Preston, C.D., Hill, M.O., Uotila, P. & Crawley, M.J. (2007) Floristic elements in European vascular plants: an analysis based on Atlas Florae Europaeae. Journal of Biogeography, 34, 1848–1872.
Mountford, J.O., Roy, D.B., Cooper, J., Manchester, S., Swetnam, R., Warman, E. & Treweek, J. (2006) Methods for targeting the restoration of grazing marsh and wet grassland communities at a national, regional and local scale. Journal for Nature Conservation, 14, 46–66.
Braschler, B. & Hill, J.K. (2007) Role of larval host plants in the climate-driven range expansion of the butterfly Polygonia c-album. Journal of Animal Ecology, 76, 415–423.