@misc{indiciaec077ec08880f,
  title = {Apparent validity of alternative survey methods.},
  author = {I B Pless and J R Miller},
  year = {1979},
  doi = {10.1007/bf01321567},
  url = {https://pubmed.ncbi.nlm.nih.gov/500844/},
  note = {Source identifier: 500844}
}