@misc{indiciaec8e64a7cb3c3,
  title = {Space shuttle external tank performance improvements: The challenge},
  author = {Coldwater, H. R. and Foll, R. R. and Howell, G. J. and Dutton, J. A.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850008607},
  note = {Source identifier: 19850008607}
}