@misc{indiciaeff346bfd84e1,
  title = {Ruffe, Gymnocephalus cernuus : Newly introduced in North America},
  author = {Dennis M. Pratt and William H. Blust and James H. Selgeby},
  year = {1992},
  doi = {10.1139/f92-179},
  url = {https://pubs.usgs.gov/publication/1000776},
  note = {Source identifier: 1000776}
}