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| Erdkunde : Archiv fuer wissenschaftliche Geographie Published by: Bonn, Universitaet Bonn, Geographisches Institut (Germany) Subject: Geography Published: 1947 ISSN: 0014-0015 Available at 5 Universities. | |||
| German Research Service Published by: Bonn, Deutscher Forschungsdienst GmbH (Germany) Subject: Sciences: Comprehensive Works Language: English Published: 1962 ISSN: 0072-1476 Available at 5 Universities. | |||