| article html file updated | 5 February 2020 13:20 CET | Update | https://new.mdpi.com/1424-8247/3/1/146 |
| article html file updated | 9 May 2019 08:50 CEST | Update | - |
| article html file updated | 19 March 2019 21:37 CET | Update | - |
| article html file updated | 16 June 2015 07:53 CEST | Update | - |
| article html file updated | 28 April 2014 11:00 CEST | Update | - |
| article xml file uploaded | 28 April 2014 11:00 CEST | Original file | https://new.mdpi.com/1424-8247/3/1/146/xml |
| article html file updated | 6 February 2013 16:20 CET | Update | - |
| article html file updated | 5 February 2013 20:28 CET | Update | - |
| article html file updated | 28 January 2013 18:05 CET | Update | - |
| article html file updated | 25 January 2013 20:41 CET | Update | - |
| article html file updated | 21 January 2013 19:19 CET | Update | - |
| article html file updated | 18 January 2013 01:24 CET | Original file | - |
