| article html file updated | 5 February 2020 15:31 CET | Update | https://www.mdpi.com/1660-3397/8/9/2526 |
| article html file updated | 9 May 2019 04:16 CEST | Update | - |
| article html file updated | 20 March 2019 03:11 CET | Update | - |
| article html file updated | 16 June 2015 11:50 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/1660-3397/8/9/2526/xml |
| article html file updated | 6 February 2013 18:35 CET | Update | - |
| article html file updated | 5 February 2013 22:34 CET | Update | - |
| article html file updated | 28 January 2013 20:06 CET | Update | - |
| article html file updated | 25 January 2013 23:29 CET | Update | - |
| article html file updated | 22 January 2013 04:32 CET | Update | - |
| article html file updated | 18 January 2013 09:59 CET | Original file | - |
