| article html file updated | 8 January 2020 19:58 CET | Update | https://www.mdpi.com/1424-8220/13/1/535 |
| article html file updated | 19 September 2019 16:34 CEST | Update | - |
| article html file updated | 9 March 2017 10:45 CET | Update | - |
| article html file updated | 17 June 2015 05:10 CEST | Update | - |
| article html file updated | 30 October 2013 09:14 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:14 CET | Update | https://www.mdpi.com/1424-8220/13/1/535/xml |
| article html file updated | 23 April 2013 14:43 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:42 CEST | Update | - |
| article html file updated | 26 March 2013 10:51 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:51 CET | Update | - |
| article html file updated | 5 March 2013 16:38 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:37 CET | Update | - |
| article html file updated | 22 February 2013 08:17 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:16 CET | Original file | - |