@misc{indiciae376614333241, title = {Gold and platinum in shales with evidence against extraterrestrial sources of metals}, author = {R.M. Coveney and J.B. Murowchick and R. I. Grauch and M.D. Glascock and J.R. Denison}, year = {1992}, doi = {10.1016/0009-2541(92)90033-2}, url = {https://pubs.usgs.gov/publication/70017029}, note = {Source identifier: 70017029} }