@misc{indiciae3d56ae8b5627,
  title = {Surface phenology and satellite sensor-derived onset of greenness: An initial comparison},
  author = {Mark D. Schwartz and Bradley C. Reed},
  year = {2010},
  doi = {10.1080/014311699211499},
  url = {https://pubs.usgs.gov/publication/70187673},
  note = {Source identifier: 70187673}
}