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| article xml file uploaded | 7 January 2014 12:38 CET | Original file | https://www.mdpi.com/2072-6643/5/12/4978/xml |
| article pdf uploaded. | 11 December 2013 16:47 CET | Updated version of record | https://www.mdpi.com/2072-6643/5/12/4978/pdf |
| article pdf uploaded. | 6 December 2013 10:05 CET | Version of Record | https://www.mdpi.com/2072-6643/5/12/4978/pdf-vor |