| article html file updated | 5 February 2020 23:51 CET | Update | https://www.mdpi.com/1424-8220/13/1/813 |
| article html file updated | 8 May 2019 10:08 CEST | Update | - |
| article html file updated | 20 March 2019 16:53 CET | Update | - |
| article html file updated | 3 March 2017 09:43 CET | Update | - |
| article html file updated | 17 June 2015 05:19 CEST | Update | - |
| article html file updated | 30 October 2013 09:16 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:16 CET | Update | https://www.mdpi.com/1424-8220/13/1/813/xml |
| article html file updated | 23 April 2013 14:46 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:46 CEST | Update | - |
| article html file updated | 26 March 2013 10:52 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:52 CET | Update | - |
| article html file updated | 5 March 2013 16:39 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:39 CET | Update | - |
| article html file updated | 22 February 2013 08:24 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:23 CET | Original file | - |
