@misc{indiciae15c53072e081,
  title = {Recognition map analysis and crop acreage estimation},
  author = {Manderscheid, L. V. and Erickson, J. D. and Nalepka, R. F. and Morgenstern, J. P.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750021449},
  note = {Source identifier: 19750021449}
}