(en) Zhang, Z., Huang, Y., James, H.F., Hou, L. (2012). A Marabou (Ciconiidae:Letoptilos) from the Middle Pleistocene of Northeastern China. The Auck 129 (4): 699-706. DOI:10.1525/auk.2012.11227.
(en) Rosenberg, K.R., Zoné, L., Ruff, C. B. (2006). Body size, body proportions, and encephalization in a Middle Pleistocene archaic human from northern China. PNAS 103 (10): 3552-3556. DOI:10.1073/pnas.0508681103.