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An investigation of the Rajidae of the west and south coasts of southern Africa. Annals of the South African Museum, 55(4), 151–220
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The origin, interrelationships and distribution of southern african Rajidae (Chondrichthyes, Batoidei). Annals of the South African Museum, 60(1), 1–103
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Families Rajidae, Anacanthobatidae In Smith's Sea Fishes, by M.M. Smith & P.C. Heemstra, eds. Macmillian, Johannesburg: 115–128
Fichas FAO de identificación de especies para actividades de pesca. Guia de campo das especies comercais marinhas e de aguas salobras de Mocambique. FAO, Rome, pp. xxii, 424, 42 pls
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A preliminary investigation of the feeding ecology of skates (Batoidea: Rajidae) off the west coast of southern Africa. South African Journal of Marine Science, 10(1), 71–81
DOI: 10.2989/02577619109504621
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The feeding ecology of skates (Batoidea: Rajidae) off the cape south coast, South Africa. South African Journal of Marine Science, 12(1), 823–834
DOI: 10.2989/02577619209504744
FAO species identification field guide for fishery purposes. The living marine resources of Namibia. FAO, Rome. 250 p.
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The biology of the skates Raja wallacei and R. pullopunctata (Batoidea: Rajidae) on the Agulhas Bank, South Africa. South African Journal of Marine Science, 21(1), 165–179
DOI: 10.2989/025776199784126051