Robert J. Knell, Dylan Wood, David W. E. Hone: Positive allometry for exaggerated structures in the ceratopsian dinosaur Protoceratops andrewsi supports socio-sexual signaling. Palaeontologia Electronica, 13.1.2016, nro 1, s. 1–13. doi:https://doi.org/10.26879/591ISSN 1094-8074Artikkelin verkkoversio. (englanniksi)
Robert J. Knell, Dylan Wood, David W. E. Hone: Positive allometry for exaggerated structures in the ceratopsian dinosaur Protoceratops andrewsi supports socio-sexual signaling. Palaeontologia Electronica, 13.1.2016, nro 1, s. 1–13. doi:https://doi.org/10.26879/591ISSN 1094-8074Artikkelin verkkoversio. (englanniksi)
Robert J. Knell, Dylan Wood, David W. E. Hone: Positive allometry for exaggerated structures in the ceratopsian dinosaur Protoceratops andrewsi supports socio-sexual signaling. Palaeontologia Electronica, 13.1.2016, nro 1, s. 1–13. doi:https://doi.org/10.26879/591ISSN 1094-8074Artikkelin verkkoversio. (englanniksi)