| article html file updated | 5 February 2020 11:50 CET | Update | https://www.mdpi.com/1660-4601/6/2/759 |
| article html file updated | 8 January 2020 07:25 CET | Update | N/A |
| article html file updated | 18 September 2019 17:06 CEST | Update | N/A |
| article html file updated | 9 May 2019 12:33 CEST | Update | N/A |
| article html file updated | 19 March 2019 17:22 CET | Update | N/A |
| article html file updated | 16 June 2015 05:38 CEST | Update | N/A |
| article html file updated | 6 February 2013 14:35 CET | Update | N/A |
| article html file updated | 5 February 2013 18:27 CET | Update | N/A |
| article html file updated | 28 January 2013 16:24 CET | Update | N/A |
| article html file updated | 25 January 2013 18:07 CET | Update | N/A |
| article html file updated | 21 January 2013 12:00 CET | Update | N/A |
| article html file updated | 18 January 2013 21:08 CET | Update | N/A |
| article html file updated | 17 January 2013 19:31 CET | Original file | N/A |
