@misc{indiciaec7b8661193cd,
  title = {Stratification and sample selection for multicrop experiments},
  author = {Landgrebe, D. A. and Hixson, M. M. and Davis, B. J. and Bauer, M. E.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790016239},
  note = {Source identifier: 19790016239}
}