| article html file updated | 5 February 2020 23:58 CET | Update | https://www.mdpi.com/1424-8220/13/1/1004 |
| article html file updated | 8 May 2019 09:53 CEST | Update | - |
| article html file updated | 20 March 2019 17:08 CET | Update | - |
| article html file updated | 3 March 2017 09:49 CET | Update | - |
| article html file updated | 17 June 2015 05:30 CEST | Update | - |
| article html file updated | 30 October 2013 09:19 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:19 CET | Update | https://www.mdpi.com/1424-8220/13/1/1004/xml |
| article html file updated | 23 April 2013 14:50 CEST | Update | - |
| article xml file uploaded | 23 April 2013 14:50 CEST | Update | - |
| article html file updated | 26 March 2013 10:53 CET | Update | - |
| article xml file uploaded | 26 March 2013 10:53 CET | Update | - |
| article html file updated | 5 March 2013 16:41 CET | Update | - |
| article xml file uploaded | 5 March 2013 16:41 CET | Update | - |
| article html file updated | 22 February 2013 08:30 CET | Original file | - |
| article xml file uploaded | 22 February 2013 08:29 CET | Original file | - |
| article pdf uploaded. | 17 January 2013 16:41 CET | Version of Record | https://www.mdpi.com/1424-8220/13/1/1004/pdf |
