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| article xml file uploaded | 4 January 2015 11:50 CET | Original file | https://www.mdpi.com/1420-3049/19/12/20374/xml |
| article pdf uploaded. | 5 December 2014 13:46 CET | Version of Record | https://www.mdpi.com/1420-3049/19/12/20374/pdf |
