@misc{indiciaeeb17029591a1,
  title = {Long-duration drought variability and impacts on ecosystem services: A case study from Glacier National Park, Montana},
  author = {Gregory T. Pederson and Stephen T. Gray and Daniel B. Fagre and Lisa J. Graumlich},
  year = {2009},
  doi = {10.1175/ei153.1},
  url = {https://pubs.usgs.gov/publication/70160237},
  note = {Source identifier: 70160237}
}