@article{433,
  author = {Pocock Michael J. O. and Tweddle John C. and Savage Joanna and Robinson Lucy D. and Roy Helen E.},
  title = {The diversity and evolution of ecological and environmental citizen science},
  year = {2017},
  journal = {PLOS ONE},
  volume = {12},
  number = {4},
  pages = {e0172579},
  url = {https://doi.org/10.1371/journal.pone.0172579},
  doi = {10.1371/journal.pone.0172579},
  language = {eng},
}