| article html file updated | 5 February 2020 14:22 CET | Update | https://www.mdpi.com/1424-8247/3/5/1311 |
| article html file updated | 9 May 2019 06:41 CEST | Update | - |
| article html file updated | 20 March 2019 00:05 CET | Update | - |
| article html file updated | 16 June 2015 09:34 CEST | Update | - |
| article html file updated | 5 June 2014 08:59 CEST | Update | - |
| article xml file uploaded | 5 June 2014 08:59 CEST | Original file | https://www.mdpi.com/1424-8247/3/5/1311/xml |
| article html file updated | 6 February 2013 17:23 CET | Update | - |
| article html file updated | 5 February 2013 21:32 CET | Update | - |
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| article html file updated | 21 January 2013 23:35 CET | Update | - |
| article html file updated | 18 January 2013 05:50 CET | Original file | - |
