@misc{indiciae5637d4d8200c,
  title = {A modified adaptive delta modulator},
  author = {Barba, J. and Scheinberg, N. and Schilling, D. L. and Garodnick, J. and Davidovici, S.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820034426},
  note = {Source identifier: 19820034426}
}