@misc{indiciaec8137bdaba43,
  title = {Big-bang nucleosynthesis revisited},
  author = {Olive, Keith A. and Schramm, David N. and Steigman, Gary and Walker, Terry P.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900013110},
  note = {Source identifier: 19900013110}
}