@misc{indiciae99b5e599e270, title = {Anthropogenic organic matter in the Great Marsh of the Indiana Dunes National Lakeshore and its implications}, author = {Maria Mastalerz and C. Souch and G. M. Filippelli and N.L. Dollar and S.M. Perkins}, year = {2001}, doi = {10.1016/s0166-5162(01)00016-7}, url = {https://pubs.usgs.gov/publication/70023978}, note = {Source identifier: 70023978} }