@misc{indiciae8a58baaaf14c,
  title = {A collision avoidance system for a spaceplane manipulator arm},
  author = {Sciomachen, Anna and Magnani, Piergiovanni},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900020587},
  note = {Source identifier: 19900020587}
}