Czerkas, S. A. & Ji, Q. (2002): A preliminary report on an omnivorous volant bird from northeast China. In: Czerkas, S. J. (editor): Feathered Dinosaurs and the origin of flight. The Dinosaur Museum Journal1: 127–135. HTML abstract [Архівовано 17 червня 2008 у Wayback Machine.]
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Czerkas, S. A. & Ji, Q. (2002): A preliminary report on an omnivorous volant bird from northeast China. In: Czerkas, S. J. (editor): Feathered Dinosaurs and the origin of flight. The Dinosaur Museum Journal1: 127–135. HTML abstract [Архівовано 17 червня 2008 у Wayback Machine.]
Senter, Phil (2006): Scapular orientation in theropods and basal birds, and the origin of flapping flight. Acta Palaeontologica Polonica51(2): 305–313. PDF fulltext
