Schmitz, Lars; Motani, Ryosuke (2011). «Nocturnality in dinosaurs inferred from scleral ring and orbit morphology». Science332: 705-708. PMID21493820. doi:10.1126/science.1200043.
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Schmitz, Lars; Motani, Ryosuke (2011). «Nocturnality in dinosaurs inferred from scleral ring and orbit morphology». Science332: 705-708. PMID21493820. doi:10.1126/science.1200043.