| article html file updated | 5 February 2020 11:52 CET | Update | https://www.mdpi.com/1660-4601/6/3/958 |
| article html file updated | 8 January 2020 07:25 CET | Update | N/A |
| article html file updated | 18 September 2019 17:09 CEST | Update | N/A |
| article html file updated | 9 May 2019 12:27 CEST | Update | N/A |
| article html file updated | 19 March 2019 17:29 CET | Update | N/A |
| article html file updated | 16 June 2015 05:42 CEST | Update | N/A |
| article html file updated | 6 February 2013 14:40 CET | Update | N/A |
| article html file updated | 5 February 2013 18:33 CET | Update | N/A |
| article html file updated | 28 January 2013 16:29 CET | Update | N/A |
| article html file updated | 25 January 2013 18:14 CET | Update | N/A |
| article html file updated | 21 January 2013 12:16 CET | Update | N/A |
| article html file updated | 18 January 2013 21:23 CET | Update | N/A |
| article html file updated | 17 January 2013 19:44 CET | Original file | N/A |