@misc{indiciae394d544f917b,
  title = {Environmental factors},
  author = {E.L.Michel and J.M. Waligora and D.J. Horrigan and W.H. Shumate},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760005585},
  note = {Source identifier: 19760005585}
}