| http://www.w3.org/ns/prov#value | - Tropical islands:Madagascar, Sri Lanka, Sulawesi ???Singapore and Hong Kong,two metropolises in the tropical region ???Bibliographical Information Lists, Indexes, 2 relief maps Hertha Arnberger, junior lecturer at the Institute of Geography at Vienna University in 1942, collaborated with her late husband from 1938 on numerous research trips, books and other publications.
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