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| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/3/4/634/xml |
| article pdf uploaded. | 25 November 2013 09:18 CET | Updated version of record | https://www.mdpi.com/2076-328X/3/4/634/pdf |
| article pdf uploaded. | 21 November 2013 14:47 CET | Version of Record | https://www.mdpi.com/2076-328X/3/4/634/pdf-vor |
