| article html file updated | 5 February 2020 17:26 CET | Update | https://www.mdpi.com/2072-6694/3/2/2554 |
| article html file updated | 8 January 2020 13:53 CET | Update | - |
| article html file updated | 19 September 2019 04:36 CEST | Update | - |
| article html file updated | 9 May 2019 00:32 CEST | Update | - |
| article html file updated | 20 March 2019 07:53 CET | Update | - |
| article html file updated | 16 June 2015 16:30 CEST | Update | - |
| article html file updated | 4 September 2013 15:08 CEST | Update | - |
| article xml file uploaded | 4 September 2013 15:08 CEST | Update | https://www.mdpi.com/2072-6694/3/2/2554/xml |
| article html file updated | 30 August 2013 09:03 CEST | Update | - |
| article xml file uploaded | 30 August 2013 09:02 CEST | Update | - |
| article html file updated | 29 August 2013 09:01 CEST | Update | - |
| article xml file uploaded | 29 August 2013 09:01 CEST | Update | - |
| article html file updated | 27 August 2013 11:53 CEST | Update | - |
| article xml file uploaded | 27 August 2013 11:53 CEST | Original file | - |
| article html file updated | 6 February 2013 21:21 CET | Update | - |
| article html file updated | 6 February 2013 01:13 CET | Update | - |
| article html file updated | 28 January 2013 22:37 CET | Update | - |
| article html file updated | 26 January 2013 02:57 CET | Update | - |
| article html file updated | 22 January 2013 17:08 CET | Original file | - |
