@misc{indiciae1d4fd24e6c88,
  title = {Wheat productivity estimates using LANDSAT data},
  author = {Nalepka, R. F. and Colwell, J. and Rice, D. P.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770021606},
  note = {Source identifier: 19770021606}
}