Taxon - Odkazy a literatura
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [jako Asaphus itferensis Fr. Schmidt 1898]Datum citace: 3. březen 2020
Lemke U. (2019): Catalogue of the available names and non available names of the species and subspecies for the class Trilobita [jako Asaphus itferensis Fr. Schmidt 1898]