Mammal Species of the World - Browse: Eothenomys

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13000211

Mammal Species of the World: Information on Eothenomys

Mammal Species of the World - Browse: centralis

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13000310

Mammal Species of the World: Information on centralis

Mammal Species of the World - Browse: przewalskii

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13000210

Mammal Species of the World: Information on przewalskii

Expertensuche | Taxonomie in Deutschland

http://www.gti-kontaktstelle.de/datenquellen

Keine Beschreibung vorhanden.

Mammal Species of the World - Browse: Lasiopodomys

http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?s=y&id=13000225

Mammal Species of the World: Information on Lasiopodomys

Pteridophytes and Gymnosperms - Google Books

https://books.google.de/books?id=8_FxJfTifF4C

The study of organismic diversity has witnessed an unprecedented upswing in the last two de­ cades. The empirical basis of botanical systematics has been broadened far beyond the realm of macromorphological traits on which systematists have based their…

Pteridophytes and Gymnosperms - Google Books

https://books.google.de/books?id=8_FxJfTifF4C&pg=PA1#v=onepage

The study of organismic diversity has witnessed an unprecedented upswing in the last two de­ cades. The empirical basis of botanical systematics has been broadened far beyond the realm of macromorphological traits on which systematists have based their…

https://web.archive.org/web/20131212040529/http://www.deepfin.org/Classification_v2.htm

Keine Beschreibung vorhanden.

Zur Fischfauna der oberen Feldberger Seen

http://www.nabu-mst.de/Tiere/fische_feldberg/fisch-fauna.htm

Keine Beschreibung vorhanden.

IV. 3. DER GENETISCHE ARTBEGRIFF

http://www.weloennig.de/AesIV3.html

Keine Beschreibung vorhanden.