@misc{indiciaee8eb3eaaf99f,
  title = {STRATIGRAPHIC BASIS FOR A LUNAR TIME SCALE},
  author = {Hackman, R. J. and Shoemaker, E. M.},
  year = {1962},
  url = {https://ntrs.nasa.gov/citations/19630022335},
  note = {Source identifier: 19630022335}
}