| article html file updated | 5 February 2020 21:12 CET | Update | https://www.mdpi.com/1660-4601/9/7/2504 |
| article html file updated | 19 September 2019 11:57 CEST | Update | - |
| article html file updated | 8 May 2019 16:26 CEST | Update | - |
| article html file updated | 25 March 2019 12:50 CET | Update | - |
| article html file updated | 17 June 2015 01:05 CEST | Update | - |
| article html file updated | 7 February 2013 13:35 CET | Update | - |
| article html file updated | 7 February 2013 03:47 CET | Update | - |
| article html file updated | 6 February 2013 08:53 CET | Update | - |
| article html file updated | 29 January 2013 15:54 CET | Update | - |
| article xml file uploaded | 29 January 2013 15:54 CET | Original file | https://www.mdpi.com/1660-4601/9/7/2504/xml |
| article html file updated | 29 January 2013 05:21 CET | Update | - |
| article html file updated | 26 January 2013 12:07 CET | Update | - |
| article html file updated | 23 January 2013 22:04 CET | Original file | - |
