@misc{indiciaec278deb28bc4,
  title = {Complementary-MOS binary counter with parallel-set inputs},
  author = {Keller, K. R. and Yung, A. K.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700000360},
  note = {Source identifier: 19700000360}
}