| article html file updated | 5 February 2020 12:22 CET | Update | https://www.mdpi.com/1660-4601/6/7/1972 |
| article html file updated | 8 January 2020 07:52 CET | Update | N/A |
| article html file updated | 18 September 2019 18:12 CEST | Update | N/A |
| article html file updated | 9 May 2019 11:05 CEST | Update | N/A |
| article html file updated | 19 March 2019 18:53 CET | Update | N/A |
| article html file updated | 16 June 2015 06:37 CEST | Update | N/A |
| article html file updated | 6 February 2013 15:21 CET | Update | N/A |
| article html file updated | 5 February 2013 19:27 CET | Update | N/A |
| article html file updated | 28 January 2013 17:10 CET | Update | N/A |
| article html file updated | 25 January 2013 19:22 CET | Update | N/A |
| article html file updated | 21 January 2013 15:20 CET | Update | N/A |
| article html file updated | 17 January 2013 22:05 CET | Original file | N/A |
