| article html file updated | 8 January 2020 19:48 CET | Update | https://www.mdpi.com/1424-8220/13/1/241 |
| article html file updated | 19 September 2019 16:17 CEST | Update | - |
| article html file updated | 9 March 2017 11:04 CET | Update | - |
| article html file updated | 17 June 2015 05:03 CEST | Update | - |
| article html file updated | 30 October 2013 09:09 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:09 CET | Update | https://www.mdpi.com/1424-8220/13/1/241/xml |
| article html file updated | 23 April 2013 14:37 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:36 CEST | Update | - |
| article html file updated | 26 March 2013 10:49 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:49 CET | Update | - |
| article html file updated | 5 March 2013 16:35 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:35 CET | Update | - |
| article html file updated | 22 February 2013 08:07 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:07 CET | Original file | - |
