@misc{indiciae12b1c1e65d3c,
  title = {A VLSI architecture of a binary updown counter},
  author = {Reed, I. S. and Hsu, I. S. and Truong, T. K.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870008518},
  note = {Source identifier: 19870008518}
}