| article html file updated | 6 February 2020 11:59 CET | Update | https://www.mdpi.com/2071-1050/6/9/5898 |
| article html file updated | 20 September 2019 12:28 CEST | Update | - |
| article html file updated | 7 May 2019 08:46 CEST | Update | - |
| article html file updated | 22 March 2019 00:18 CET | Update | - |
| article html file updated | 20 August 2015 17:22 CEST | Update | - |
| article html file updated | 24 September 2014 14:20 CEST | Original file | - |
| article xml file uploaded | 24 September 2014 14:20 CEST | Original file | https://www.mdpi.com/2071-1050/6/9/5898/xml |
| article pdf uploaded. | 4 September 2014 12:41 CEST | Updated version of record | https://www.mdpi.com/2071-1050/6/9/5898/pdf |
| article pdf uploaded. | 3 September 2014 14:13 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/9/5898/pdf-vor |
