@misc{indiciae01cde66d1d5e,
  title = {Orbital servicing and remotely manned systems},
  author = {Smith, G. W. and Derocher, W. L., Jr.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770060793},
  note = {Source identifier: 19770060793}
}