@misc{indiciae762d116438a7,
  title = {Light as a chronobiologic countermeasure for long-duration space operations},
  author = {Samel, Alexander and Gander, Philippa and Evans, Julie and Graeber, R. Curtis and Hackett, Elizabeth and Keil, Lanny and Maab, Hartmut and Raabe, Wolfgang and Rosekind, Mark and Rountree, Mike},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920021923},
  note = {Source identifier: 19920021923}
}