@misc{indiciaea14591965881,
  title = {A comparison of methods for adaptive sample size adjustment.},
  author = {T Friede and M Kieser},
  year = {2001},
  doi = {10.1002/sim.972},
  url = {https://pubmed.ncbi.nlm.nih.gov/11782039/},
  note = {Source identifier: 11782039}
}