@misc{indiciae5806028c2bf0,
  title = {The sixth generation robot in space},
  author = {Butcher, A. and Das, A. and Reddy, Y. V. and Singh, H.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900018016},
  note = {Source identifier: 19900018016}
}