| article html file updated | 6 February 2020 11:47 CET | Update | https://www.mdpi.com/1996-1944/7/9/6130 |
| article html file updated | 7 May 2019 09:08 CEST | Update | - |
| article html file updated | 21 March 2019 23:48 CET | Update | - |
| article html file updated | 20 August 2015 16:33 CEST | Update | - |
| article html file updated | 20 October 2014 11:29 CEST | Original file | - |
| article xml file uploaded | 20 October 2014 11:29 CEST | Original file | https://www.mdpi.com/1996-1944/7/9/6130/xml |
| article pdf uploaded. | 26 August 2014 10:44 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/9/6130/pdf |
