B-K. Zhang
Li J.-J., Lu J-C. and Zhang B.-K., 2003, A new Lower Cretaceous Sinopterid pterosaur from the Western Liaoning, China: Acta Palaeontologica Sinica, vol.42, no .3, p.442-447. (Sinopterus gui)
Lu J. and Zhang B.,2005, New pterodactyloid pterosaur from the Yixian Formation of Western Liaoning: Geological Review, vol.51, no.4, p.458-462. (Eopteranodon lii)