| article html file updated | 5 February 2020 18:18 CET | Update | https://www.mdpi.com/1660-3397/9/10/1761 |
| article html file updated | 8 May 2019 22:45 CEST | Update | N/A |
| article html file updated | 20 March 2019 10:02 CET | Update | N/A |
| article html file updated | 16 June 2015 19:01 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:04 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:04 CEST | Original file | https://www.mdpi.com/1660-3397/9/10/1761/xml |
| article html file updated | 6 February 2013 22:56 CET | Update | N/A |
| article html file updated | 6 February 2013 02:42 CET | Update | N/A |
| article html file updated | 29 January 2013 00:02 CET | Update | N/A |
| article html file updated | 26 January 2013 05:26 CET | Update | N/A |
| article html file updated | 22 January 2013 23:28 CET | Original file | N/A |
