| article html file updated | 7 February 2020 18:25 CET | Update | https://www.mdpi.com/1996-1073/9/11/975 |
| article html file updated | 4 May 2019 21:44 CEST | Update | - |
| article html file updated | 30 November 2016 06:10 CET | Update | - |
| article html file updated | 23 November 2016 08:35 CET | Update | - |
| article xml uploaded. | 23 November 2016 08:33 CET | Update | https://www.mdpi.com/1996-1073/9/11/975/xml |
| article pdf uploaded. | 23 November 2016 08:33 CET | Updated version of record | https://www.mdpi.com/1996-1073/9/11/975/pdf |
| article html file updated | 22 November 2016 14:18 CET | Original file | - |
| article xml uploaded. | 22 November 2016 14:17 CET | Original file | - |
| article pdf uploaded. | 22 November 2016 14:17 CET | Version of Record | https://www.mdpi.com/1996-1073/9/11/975/pdf-vor |