| article html file updated | 5 February 2020 20:14 CET | Update | https://www.mdpi.com/2077-1444/3/2/369 |
| article html file updated | 19 September 2019 10:02 CEST | Update | N/A |
| article html file updated | 8 May 2019 18:34 CEST | Update | N/A |
| article html file updated | 25 March 2019 10:48 CET | Update | N/A |
| article html file updated | 16 June 2015 23:31 CEST | Update | N/A |
| article html file updated | 7 February 2013 12:01 CET | Update | N/A |
| article html file updated | 7 February 2013 02:00 CET | Update | N/A |
| article html file updated | 6 February 2013 07:25 CET | Update | N/A |
| article html file updated | 29 January 2013 03:04 CET | Update | N/A |
| article html file updated | 26 January 2013 10:03 CET | Update | N/A |
| article html file updated | 23 January 2013 16:26 CET | Update | N/A |
| article html file updated | 16 January 2013 13:52 CET | Original file | N/A |
| article xml file uploaded | 16 January 2013 13:52 CET | Original file | https://www.mdpi.com/2077-1444/3/2/369/xml |
