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| article xml file uploaded | 1 July 2014 05:30 CEST | Original file | https://www.mdpi.com/1420-3049/19/6/7981/xml |
| article pdf uploaded. | 12 June 2014 12:54 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/6/7981/pdf |