| article html file updated | 5 February 2020 19:41 CET | Update | https://www.mdpi.com/2075-4426/2/1/15 |
| article html file updated | 8 May 2019 19:47 CEST | Update | - |
| article html file updated | 25 March 2019 09:50 CET | Update | - |
| article html file updated | 16 June 2015 22:13 CEST | Update | - |
| article html file updated | 21 July 2014 03:37 CEST | Update | - |
| article xml file uploaded | 21 July 2014 03:37 CEST | Original file | https://www.mdpi.com/2075-4426/2/1/15/xml |
| article html file updated | 7 February 2013 10:58 CET | Update | - |
| article html file updated | 7 February 2013 01:04 CET | Update | - |
| article html file updated | 6 February 2013 06:28 CET | Update | - |
| article html file updated | 29 January 2013 02:06 CET | Update | - |
| article html file updated | 26 January 2013 08:41 CET | Update | - |
| article html file updated | 23 January 2013 12:06 CET | Original file | - |
