| article html file updated | 6 February 2020 11:41 CET | Update | https://www.mdpi.com/1996-1073/7/8/5425 |
| article html file updated | 7 May 2019 09:18 CEST | Update | - |
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| article html file updated | 20 August 2015 16:15 CEST | Update | - |
| article html file updated | 11 September 2014 12:14 CEST | Original file | - |
| article xml file uploaded | 11 September 2014 12:14 CEST | Original file | https://www.mdpi.com/1996-1073/7/8/5425/xml |
| article pdf uploaded. | 22 August 2014 09:02 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/8/5425/pdf |
