| article html file updated | 6 February 2020 05:57 CET | Update | https://www.mdpi.com/2072-6643/5/12/4908 |
| article html file updated | 20 September 2019 03:56 CEST | Update | - |
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| article html file updated | 19 August 2015 12:14 CEST | Update | - |
| article html file updated | 7 January 2014 12:38 CET | Original file | - |
| article xml file uploaded | 7 January 2014 12:38 CET | Original file | https://www.mdpi.com/2072-6643/5/12/4908/xml |
| article pdf uploaded. | 4 December 2013 09:33 CET | Version of Record | https://www.mdpi.com/2072-6643/5/12/4908/pdf |
