@misc{indiciaececc9547a192,
  title = {Uranium-series dated authigenic carbonates and Acheulian sites in southern Egypt},
  author = {Barney J. Szabo and W.P. McHugh and G. G. Schaber and C.V. Haynes and C. S. Breed},
  year = {1989},
  doi = {10.1126/science.243.4894.1053},
  url = {https://pubs.usgs.gov/publication/70015098},
  note = {Source identifier: 70015098}
}