| article html file updated | 6 February 2020 00:00 CET | Update | https://www.mdpi.com/1424-8220/13/1/1121 |
| article html file updated | 8 May 2019 09:47 CEST | Update | - |
| article html file updated | 20 March 2019 17:14 CET | Update | - |
| article html file updated | 3 March 2017 09:51 CET | Update | - |
| article html file updated | 17 June 2015 05:32 CEST | Update | - |
| article html file updated | 30 October 2013 09:20 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:20 CET | Update | https://www.mdpi.com/1424-8220/13/1/1121/xml |
| article html file updated | 23 April 2013 14:51 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:51 CEST | Update | - |
| article html file updated | 26 March 2013 10:54 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:54 CET | Update | - |
| article html file updated | 5 March 2013 16:42 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:42 CET | Update | - |
| article html file updated | 22 February 2013 08:32 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:31 CET | Original file | - |
