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  1. No Access

    Book

    Anatomy of a South African Karst Hydrosystem

    The Hydrology and Hydrogeology of the Cradle of Humankind World Heritage Site

    Philip J. Hobbs, Harrison Pienaar… in Cave and Karst Systems of the World (2022)

  2. No Access

    Book

    Orbits

    Guochang Xu (2008)