@misc{indiciae687914c3c536, title = {Stable isotopes and sediments from Pickerel Lake, South Dakota, USA: A 12ky record of environmental changes}, author = {A. Schwalb and W.E. Dean}, year = {1998}, doi = {10.1023/a:1007971226750}, url = {https://pubs.usgs.gov/publication/70021346}, note = {Source identifier: 70021346} }