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Citations
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BERNITSCHKE K et al,. (1965). Chromosome complement: differences between Equus caballus and Equus przewalskii, Poliakoff. Science, 148, 382.
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Azzaroli A,. (1965). The two villafranchian horses of the upper Valdarno. Paleontogr Ital, 59, 1–12.
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