Rookmaaker, L.C. 2011.Calcutta Zoo 1880s: evidence of a hitherto unrecorded Javan rhinoceros.International Zoo News 58 (1): 24-25.
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Rookmaaker, L.C. 2011.The early endeavours by Hugh Edwin Strickland to establish a code for zoological nomenclature in 1842–1843.Bulletin of Zoological Nomenclature 68 (1): 29-40, figs. 1-4.
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Rookmaaker, L.C. 2011.How I met Clara, the Dutch rhinoceros.Pachyderm Special 50th issue (Pachyderm Past and Present): 10-11.
Rookmaaker, L.C. 2011.[Review] Historical incidence of the larger land mammals in the broader Northern and Western Cape (by J. Skead, 2nd edition).Pachyderm 50: 87.
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Rookmaaker, L.C. 2011.A review of black rhino systematics proposed in Ungulate Taxonomy by Groves and Grubb (2011) and its implications for rhino conservation.Pachyderm 50: 72-76.
Rookmaaker, L.C.; Kraft, R. 2011.The history of the unique type of Rhinoceros cucullatus, with remarks on observations in Ethiopia by James Bruce and William Cornwallis Harris (Mammalia, Rhinocerotidae).Spixiana, Munchen 34 (1): 133-144, figs. 1-8.
Rookmaaker, L.C. 2011.Encyclopaedia Londinensis [reprint].In: Nelson, C., History and mystery: notes and queries from the newsletters of the Society for the History of Natural History.p. 138.
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Rookmaaker, L.C. 2011.Dates of Buffon’s Histoire Naturelle [reprint].In: Nelson, C., History and mystery: notes and queries from the newsletters of the Society for the Historyy of Natural History.p. 145.