@misc{indiciaee2fc28f79274, title = {Late-stage sulfides and sulfarsenides in Lower Cambrian black shale (stone coal) from the Huangjiawan mine, Guizhou Province, People's Republic of China}, author = {H. E. Belkin and K. Luo}, year = {2007}, doi = {10.1007/s00710-007-0201-9}, url = {https://pubs.usgs.gov/publication/70031915}, note = {Source identifier: 70031915} }