| Hieronymus, T.; Witmer, T.; Ridgely, R.C., 2006. Structure of white rhinoceros (Ceratotherium simum) horn investigated by X-ray computed tomography and histology with implications for growth and external form. Journal of Morphology 267: 1172-1176, figs. 1-3
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|
| Hieronymus, T.; Witmer, T., 2004. Cranial rugosity and dinosaur "horns": rhino and giraffe as model systems for skin resconstruction in fossil taxa . Journal of Vertebrate Paleontology 24 (3): 70A
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