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| article xml file uploaded | 12 May 2014 15:29 CEST | Original file | https://www.mdpi.com/2072-6643/6/4/1333/xml |
| article pdf uploaded. | 17 April 2014 09:59 CEST | Updated version of record | https://www.mdpi.com/2072-6643/6/4/1333/pdf |
| article pdf uploaded. | 2 April 2014 08:46 CEST | Version of Record | https://www.mdpi.com/2072-6643/6/4/1333/pdf-vor |