Rookmaaker, L.C. 2000.The alleged population reduction of the southern white rhinoceros (Ceratotherium simum simum) and the successful recovery.Saugetierkundliche Mitteilungen 45 (2): 55-70, fig.1, tables 1-2.
Rookmaaker, L.C. 1999.Tracking the rhinoceros? Share your experiences.Hornbill 1999 July-September: 2.
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Rookmaaker, L.C. 1999.Rhinoceros illustrations, 2: Henderyckx.Rhino Watch 10 in SA Game & Hunt 5 (1): 29, figs. 1-2.
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Rookmaaker, L.C. 1999.Note on the third edition.In: Merz, A., Rhinos: at the brink of extinction, 3rd ed. Johannesburg, Longhorn Publishers.p. 8.
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Rookmaaker, L.C. 1999.The name of the black rhinoceros (Factfile, no 1).Rhino Watch 10 in SA Game & Hunt 5 (1): 2.
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Rookmaaker, L.C. 1999.Tracking the rhinoceros – share your experiences.Mitteilungen der Namibia Wissenschaftlichen Gesellschaft 40: 2.
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Rookmaaker, L.C. 1998.Samuel Daniell’s new species of rhinoceros found in 1801.REF Journal 12: 32-35, figs. 1-4.
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Rookmaaker, L.C. 1998.The rhinoceros library in the Waterberg.REF Journal 12: 36, fig. 1.
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Rookmaaker, L.C. 1998.Chapter 4. The Indian rhinoceros (Rhinoceros unicornis) in captivity to 1994.In: Rookmaaker, L.C., The rhinoceros in captivity: a list of 2439 rhinoceroses kept from Roman times to 1994. The Hague.pp. 33-115.
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Rookmaaker, L.C. 1998.Chapter 1. Introduction.In: Rookmaaker, L.C., The rhinoceros in captivity: a list of 2439 rhinoceroses kept from Roman times to 1994. The Hague.pp. 1-19.