Autore:Karl von Baer
![](https://cdn.statically.io/img/upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Voyages_de_la_Commission_scientifique_du_Nord%2C_en_Scandinavie%2C_en_Laponie%2C_au_Spitzberg_et_aux_Fer%C3%B6e_-_no-nb_digibok_2009040211001-118.jpg/140px-Voyages_de_la_Commission_scientifique_du_Nord%2C_en_Scandinavie%2C_en_Laponie%2C_au_Spitzberg_et_aux_Fer%C3%B6e_-_no-nb_digibok_2009040211001-118.jpg)
- ↑ Gemeinsame Normdatei
- ↑ 2,0 2,1 data.bnf.fr
- ↑ SNAC
- ↑ www.academie-medecine.fr
Baer biologo tedesco
Voce enciclopedica su Wikipedia
Immagini e/o file multimediali su Commons
Wikispecies contiene informazioni su Karl von Baer