@misc{indiciae04bc2cfe6d91,
  title = {System for generating timing and control signals},
  author = {Perlman, M. and Rousey, W. J. and Messner, A.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750011447},
  note = {Source identifier: 19750011447}
}