@misc{indiciae1d405e652078,
  title = {Problematica Silurica : Systême Silurien du centre de la Bohême — Illustration, Fig. 1, Page 14},
  year = {1908},
  url = {https://www.biodiversitylibrary.org/page/14880978},
  note = {Source identifier: page-14880978}
}