DOI: https://doi.org/10.1515/mgrsd-2015-0018 | Journal eISSN: 2084-6118 | Journal ISSN: 0867-6046 (formerly 2084-6118)
Language: English
Page range: 56 - 62
Submitted on: Mar 13, 2015
Accepted on: Sep 14, 2015
Published on: Oct 26, 2015
Published by: Faculty of Geography and Regional Studies, University of Warsaw
In partnership with: Paradigm Publishing Services
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© 2015 Robert M. Arthur, published by Faculty of Geography and Regional Studies, University of Warsaw
This work is licensed under the Creative Commons Attribution 4.0 License.