@misc{indiciae29bfc44847df,
  title = {Tethered orbital propellant depot},
  author = {Fester, D. A. and Rudolph, L. K. and Kiefel, E. R.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860048169},
  note = {Source identifier: 19860048169}
}