| article html file updated | 5 February 2020 19:32 CET | Update | https://www.mdpi.com/2218-273X/2/1/104 |
| article html file updated | 19 September 2019 08:37 CEST | Update | - |
| article html file updated | 8 May 2019 20:08 CEST | Update | - |
| article html file updated | 25 March 2019 09:32 CET | Update | - |
| article html file updated | 15 June 2018 10:23 CEST | Update | - |
| article html file updated | 16 June 2015 21:55 CEST | Update | - |
| article html file updated | 12 May 2014 15:29 CEST | Update | - |
| article xml file uploaded | 12 May 2014 15:28 CEST | Original file | https://www.mdpi.com/2218-273X/2/1/104/xml |
| article html file updated | 7 February 2013 10:41 CET | Update | - |
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| article html file updated | 29 January 2013 01:53 CET | Update | - |
| article html file updated | 26 January 2013 08:21 CET | Update | - |
| article html file updated | 23 January 2013 10:45 CET | Original file | - |
