| article html file updated | 8 January 2020 20:14 CET | Update | https://www.mdpi.com/1424-8220/13/1/918 |
| article html file updated | 19 September 2019 16:58 CEST | Update | - |
| article html file updated | 9 March 2017 22:46 CET | Update | - |
| article html file updated | 17 June 2015 05:29 CEST | Update | - |
| article html file updated | 30 October 2013 09:17 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:17 CET | Update | https://www.mdpi.com/1424-8220/13/1/918/xml |
| article html file updated | 23 April 2013 14:48 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:48 CEST | Update | - |
| article html file updated | 26 March 2013 10:53 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:52 CET | Update | - |
| article html file updated | 5 March 2013 16:40 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:40 CET | Update | - |
| article html file updated | 22 February 2013 08:26 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:26 CET | Original file | - |
