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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
Ein neuer archibenthaler Roche aus dem Nordostatlantik, Raja kreffti spec. nov. (Elasmobranchii, Batoidea, Rajidae), die zweite Spezies im Subgenus Malacoraja Stehmann, 1970. Archiv für Fischereiwissenschaft, 28(2/3), 77–93
Families Rajidae, Anacanthobatidae In Smith's Sea Fishes, by M.M. Smith & P.C. Heemstra, eds. Macmillian, Johannesburg: 115–128
A morphological analysis of the ampullae of Lorenzini in selected skates (Pisces, Rajoidei). Journal of Morphology, 189(3), 225–247
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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
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