| article html file updated | 6 February 2020 05:45 CET | Update | https://www.mdpi.com/1660-4601/10/12/6273 |
| article html file updated | 7 May 2019 21:43 CEST | Update | - |
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| article html file updated | 19 August 2015 10:49 CEST | Update | - |
| article html file updated | 7 January 2014 13:15 CET | Original file | - |
| article xml file uploaded | 7 January 2014 13:15 CET | Original file | https://www.mdpi.com/1660-4601/10/12/6273/xml |
| article pdf uploaded. | 25 November 2013 15:32 CET | Version of Record | https://www.mdpi.com/1660-4601/10/12/6273/pdf |
