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| article xml file uploaded | 7 January 2014 13:18 CET | Original file | https://www.mdpi.com/1660-4601/10/12/6909/xml |
| article pdf uploaded. | 19 December 2013 08:58 CET | Updated version of record | https://www.mdpi.com/1660-4601/10/12/6909/pdf |
| article pdf uploaded. | 10 December 2013 13:47 CET | Version of Record | https://www.mdpi.com/1660-4601/10/12/6909/pdf-vor |
