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| article xml file uploaded | 17 February 2014 11:09 CET | Original file | https://www.mdpi.com/1660-4601/11/1/271/xml |
| article pdf uploaded. | 30 December 2013 16:20 CET | Updated version of record | https://www.mdpi.com/1660-4601/11/1/271/pdf |
| article pdf uploaded. | 23 December 2013 14:17 CET | Version of Record | https://www.mdpi.com/1660-4601/11/1/271/pdf-vor |
