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| article xml file uploaded | 10 March 2015 07:35 CET | Original file | https://www.mdpi.com/1420-3049/20/2/1922/xml |
| article pdf uploaded. | 26 January 2015 15:22 CET | Version of Record | https://www.mdpi.com/1420-3049/20/2/1922/pdf |