^ 1.01.11.2Zelenkov, N. V.; Lavrov, A. V.; Startsev, D. B.; Vislobokova, I. A.; Lopatin, A. V. A giant early Pleistocene bird from eastern Europe: unexpected component of terrestrial faunas at the time of early Homo arrival. Journal of Vertebrate Paleontology. 2019, 39 (2): e1605521. S2CID 198384367. doi:10.1080/02724634.2019.1605521.
^Buffetaut, Eric; Angst, Delphine. A Giant Ostrich from the Lower Pleistocene Nihewan Formation of North China, with a Review of the Fossil Ostriches of China. Diversity. 2021, 13 (2): 47. doi:10.3390/d13020047(英语).
^ Nikita V. Zelenkov, Alexander V. Lavrov, Dmitry B. Startsev, Innessa A. Vislobokova and Alexey V. Lopatin. 2019. A Giant early Pleistocene Bird from eastern Europe: Unexpected Component of Terrestrial Faunas at the Time of early Homo arrival. Journal of Vertebrate Paleontology. e1605521 DOI: 10.1080/02724634.2019.1605521