@misc{indiciaeca870fe4fe8c,
  title = {Das Süsswasserplankton; Methode und Resultate der quantitativen Untersuchung — Illustration, Page 34},
  year = {1896},
  url = {https://www.biodiversitylibrary.org/page/37003906},
  note = {Source identifier: page-37003906}
}