@misc{indiciaed40cea339655,
  title = {Minmax designs for planning the second phase in a two-phase case-control study.},
  author = {W Schill and P Wild},
  year = {2006},
  doi = {10.1002/sim.2307},
  url = {https://pubmed.ncbi.nlm.nih.gov/16158403/},
  note = {Source identifier: 16158403}
}