| article html file updated | 6 February 2020 09:37 CET | Update | https://www.mdpi.com/1996-1944/7/6/4272 |
| article html file updated | 7 May 2019 13:50 CEST | Update | - |
| article html file updated | 21 March 2019 17:55 CET | Update | - |
| article html file updated | 20 August 2015 08:39 CEST | Update | - |
| article html file updated | 11 July 2014 10:59 CEST | Original file | - |
| article xml file uploaded | 11 July 2014 10:59 CEST | Original file | https://www.mdpi.com/1996-1944/7/6/4272/xml |
| article pdf uploaded. | 4 June 2014 14:32 CEST | Updated version of record | https://www.mdpi.com/1996-1944/7/6/4272/pdf |
| article pdf uploaded. | 30 May 2014 08:51 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/6/4272/pdf-vor |
