@misc{indiciaefc05016e8c7d,
  title = {Aquatic vegetation and trophic condition of Cape Cod (Massachusetts, USA) kettle ponds},
  author = {C. T. Roman and N. E. Barrett and J. W. Portnoy},
  year = {2001},
  doi = {10.1023/a:1017540002675},
  url = {https://pubs.usgs.gov/publication/5224383},
  note = {Source identifier: 5224383}
}