| article html file updated | 6 February 2020 09:36 CET | Update | https://www.mdpi.com/1996-1944/7/6/4243 |
| article html file updated | 7 May 2019 13:51 CEST | Update | - |
| article html file updated | 21 March 2019 17:54 CET | Update | - |
| article html file updated | 20 August 2015 08:39 CEST | Update | - |
| article html file updated | 18 July 2014 04:26 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 04:26 CEST | Original file | https://www.mdpi.com/1996-1944/7/6/4243/xml |
| article pdf uploaded. | 30 May 2014 08:39 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/6/4243/pdf |
