Renal and salt gland function in the Jackass penguin (Speniscus [i.e. Spheniscus] demersus Linn.) with special reference to the renal portal system by Oelofsen, B. W.(Burger Wilhelm)

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An anatomical and systematic study of the family Mesosauridae (reptilia : proganosauria) with special reference to its associated fauna and palaeoecological environment in the Whit... by Oelofsen, B. W.(Burger Wilhelm)

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