| article html file updated | 5 February 2020 09:24 CET | Update | https://www.mdpi.com/1424-8220/7/1/84 |
| article html file updated | 8 January 2020 06:36 CET | Update | - |
| article html file updated | 18 September 2019 13:44 CEST | Update | - |
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| article html file updated | 11 November 2015 10:26 CET | Update | - |
| article xml file uploaded | 11 November 2015 10:26 CET | Update | https://www.mdpi.com/1424-8220/7/1/84/xml |
| article html file updated | 29 August 2013 08:49 CEST | Original file | - |
| article xml file uploaded | 29 August 2013 08:49 CEST | Original file | - |
