| article html file updated | 5 February 2020 22:38 CET | Update | https://www.mdpi.com/2218-273X/2/4/505 |
| article html file updated | 19 September 2019 14:25 CEST | Update | - |
| article html file updated | 8 May 2019 13:07 CEST | Update | - |
| article html file updated | 20 March 2019 14:12 CET | Update | - |
| article html file updated | 15 June 2018 10:22 CEST | Update | - |
| article html file updated | 17 June 2015 03:26 CEST | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/2218-273X/2/4/505/xml |
| article html file updated | 14 August 2014 11:20 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:20 CEST | Update | - |
| article html file updated | 12 May 2014 15:31 CEST | Update | - |
| article xml file uploaded | 12 May 2014 15:30 CEST | Original file | - |
| article html file updated | 7 February 2013 16:12 CET | Update | - |
| article html file updated | 24 January 2013 06:36 CET | Original file | - |
