@book{bhlpg5955213, title = {Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern }, volume = {Bd.10 (1909)}, url = {https://www.biodiversitylibrary.org/page/5955213}, publisher = {G. Reimer}, author = {Drygalski, Erich von, 1865 -1949}, year = {1908}, pages = {Page 62}, } @book{bhlpg5955270, title = {Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern }, volume = {Bd.10 (1909)}, url = {https://www.biodiversitylibrary.org/page/5955270}, publisher = {G. Reimer}, author = {Drygalski, Erich von, 1865 -1949}, year = {1908}, pages = {Page 119}, } @book{bhlpg891096, title = {Das Tierreich }, volume = {Lfg.31 (1912)}, url = {https://www.biodiversitylibrary.org/page/891096}, publisher = {R. Friedländer}, author = {Deutsche Zoologische Gesellschaft. }, year = {1912}, pages = {Page 286}, }