@misc{indiciae87b69462973e,
  title = {Quantitative simulation of extraterrestrial engineering devices},
  author = {Arabyan, A. and Nikravesh, P. E. and Vincent, T. L.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910015075},
  note = {Source identifier: 19910015075}
}