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Ji, Q.; Luo Z-X, Yuan C-X, ja Tabrum A.R: A Swimming Mammaliaform from the Middle Jurassic and Ecomorphological Diversification of Early Mammals. Science, 24.2.2006, 311. vsk, nro 5764, s. 147–168. PubMed:16497926doi:10.1126/science.1123026(englanniksi)