Rookmaaker, L.C.; Pieters, F.F.J.M. 2000. Birds in the sales catalogue of Adriaan Vroeg (1764) described by Pallas and Vosmaer. Contributions to Zoology 69 (4): 271-277, fig. 1, table 1.
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Rookmaaker, L.C. 2000. The menagerie of the monastery in Theyboo, Myanmar. Back When and Then 4 (1): xiv.
Rookmaaker, L.C.; Monson, J. 2000. Woodcuts and engravings illustrating the journey of Clara, the most popular rhinoceros of the eighteenth century. Zoologische Garten 70 (5): 313-335, figs. 1-11, table 1.
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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.
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Rookmaaker, L.C. 1999. On bibliographies and unpublished reports. Pachyderm 27: 117.
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Rookmaaker, L.C. 1999. Review of Africa’s Greatest Hunter – The lost writings of Frederick C. Selous. SA Game and Hunt 5 (12): 32, fig. 1.