@misc{indiciaebf2609e3d9b5,
  title = {Estimation problems when a simple type of heterogeneity is present in the sample.},
  author = {W M LONG},
  year = {1951},
  url = {https://pubmed.ncbi.nlm.nih.gov/14848115/},
  note = {Source identifier: 14848115}
}