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O'Connor, Patrick M. (2 november 2006). ”Basic avian pulmonary design and flow-through ventilation in non-avian theropod dinosaurs”. Nature "436" (7048): ss. 253–256. doi:10.1038/nature03716. PMID 16015329.
Schweitzer, M. H. (2 november 2009). ”Biomolecular Characterization and Protein Sequences of the Campanian Hadrosaur B. canadensis”. Science "324" (5927): ss. 626–631. doi:10.1126/science.1165069. PMID 19407199.