| article html file updated | 5 February 2020 17:57 CET | Update | https://www.mdpi.com/2072-6651/3/8/1038 |
| article html file updated | 8 May 2019 23:28 CEST | Update | N/A |
| article html file updated | 20 March 2019 09:11 CET | Update | N/A |
| article html file updated | 16 June 2015 17:56 CEST | Update | N/A |
| article html file updated | 6 February 2013 22:20 CET | Update | N/A |
| article html file updated | 6 February 2013 02:07 CET | Update | N/A |
| article html file updated | 28 January 2013 23:29 CET | Update | N/A |
| article html file updated | 26 January 2013 04:32 CET | Update | N/A |
| article html file updated | 22 January 2013 20:58 CET | Original file | N/A |
| Correction published | 23 October 2012 00:00 CEST | Correction | http://www.mdpi.com/2072-6651/4/10/955 |
