| article html file updated | 6 February 2020 20:56 CET | Update | https://www.mdpi.com/2071-1050/7/7/9711 |
| article html file updated | 6 May 2019 15:13 CEST | Update | - |
| article html file updated | 26 March 2019 07:09 CET | Update | - |
| article html file updated | 21 August 2015 15:09 CEST | Update | - |
| article html file updated | 19 August 2015 10:09 CEST | Original file | - |
| article xml file uploaded | 19 August 2015 10:09 CEST | Original file | https://www.mdpi.com/2071-1050/7/7/9711/xml |
| article pdf uploaded. | 23 July 2015 11:14 CEST | Updated version of record | https://www.mdpi.com/2071-1050/7/7/9711/pdf |
| article pdf uploaded. | 22 July 2015 12:45 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/7/9711/pdf-vor |
