@misc{indiciaee667188e3acc,
  title = {Lead isotope studies of mare basalt 70017},
  author = {Mattinson, J. M. and Tilton, G. R. and Todt, W. and Chen, J. H.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780057737},
  note = {Source identifier: 19780057737}
}