| article html file updated | 6 February 2020 10:34 CET | Update | https://www.mdpi.com/2071-1050/6/7/4246 |
| article html file updated | 7 May 2019 11:54 CEST | Update | - |
| article html file updated | 21 March 2019 20:28 CET | Update | - |
| article html file updated | 20 August 2015 12:14 CEST | Update | - |
| article html file updated | 5 August 2014 12:00 CEST | Original file | - |
| article xml file uploaded | 5 August 2014 12:00 CEST | Original file | https://www.mdpi.com/2071-1050/6/7/4246/xml |
| article pdf uploaded. | 14 July 2014 09:24 CEST | Updated version of record | https://www.mdpi.com/2071-1050/6/7/4246/pdf |
| article pdf uploaded. | 9 July 2014 11:04 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/7/4246/pdf-vor |
