@book{bhlpg6242595, title = {Archiv für Naturgeschichte }, volume = {Jahrg.42:Bd.2 (1876)}, url = {https://www.biodiversitylibrary.org/page/6242595}, publisher = {Nicolai}, author = {}, year = {1876}, pages = {Page 561}, } @book{bhlpg15646079, title = {Berichte uber die wissenschaftlichen Leistungen in der Naturgeschichte der niederen Thiere während des Jahres ... }, volume = {1872-1875}, url = {https://www.biodiversitylibrary.org/page/15646079}, publisher = {Nicolai}, author = {Leuckart, Rudolf, 1823 -1898}, year = {1878}, pages = {Page 307}, }