| article html file updated | 5 February 2020 10:10 CET | Update | https://www.mdpi.com/1660-3397/6/2/389 |
| article html file updated | 9 May 2019 15:38 CEST | Update | N/A |
| article html file updated | 22 March 2019 07:33 CET | Update | N/A |
| article html file updated | 19 March 2019 14:05 CET | Update | N/A |
| article html file updated | 16 June 2015 04:38 CEST | Update | N/A |
| article html file updated | 6 February 2013 14:01 CET | Update | N/A |
| article html file updated | 5 February 2013 17:52 CET | Update | N/A |
| article html file updated | 28 January 2013 15:56 CET | Update | N/A |
| article html file updated | 25 January 2013 17:31 CET | Update | N/A |
| article html file updated | 21 January 2013 10:00 CET | Update | N/A |
| article html file updated | 18 January 2013 19:29 CET | Update | N/A |
| article html file updated | 17 January 2013 18:06 CET | Original file | N/A |
