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Alan Feduccia, Theagarten Lingham-Soliar, J. Richard Hinchliffe: Do feathered dinosaurs exist? Testing the hypothesis on neontological and paleontological evidence. In: Journal of Morphology. Bd. 266, Nr. 2, 2005, ISSN0362-2525, S. 125–166, doi:10.1002/jmor.10382.
Zhong-He Zhou, Xiao-Lin Wang: A new species of Caudipteryx from the Yixian Formation of Liaoning, northeast China. In: Vertebrata Palasiatica. Bd. 38, Nr. 2, 2000, ZDB-ID 2485763-4, S. 113–130, Digitalisat (PDF; 1,83 MB).
Alan Feduccia, Theagarten Lingham-Soliar, J. Richard Hinchliffe: Do feathered dinosaurs exist? Testing the hypothesis on neontological and paleontological evidence. In: Journal of Morphology. Bd. 266, Nr. 2, 2005, ISSN0362-2525, S. 125–166, doi:10.1002/jmor.10382.