| article html file updated | 6 February 2020 11:57 CET | Update | https://www.mdpi.com/1996-1944/7/9/6254 |
| article html file updated | 7 May 2019 08:49 CEST | Update | - |
| article html file updated | 22 March 2019 00:12 CET | Update | - |
| article html file updated | 20 August 2015 17:13 CEST | Update | - |
| article html file updated | 20 October 2014 11:39 CEST | Update | - |
| article xml file uploaded | 20 October 2014 11:39 CEST | Update | https://www.mdpi.com/1996-1944/7/9/6254/xml |
| article html file updated | 14 October 2014 12:07 CEST | Original file | - |
| article xml file uploaded | 14 October 2014 12:07 CEST | Original file | - |
| article pdf uploaded. | 2 September 2014 12:08 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/9/6254/pdf |
