| article html file updated | 8 February 2020 21:21 CET | Update | https://www.mdpi.com/2071-1050/9/11/2109 |
| article html file updated | 28 September 2019 12:32 CEST | Update | - |
| article html file updated | 2 May 2019 14:40 CEST | Update | - |
| article html file updated | 18 April 2019 12:19 CEST | Update | - |
| article html file updated | 30 November 2017 13:17 CET | Update | - |
| article html file updated | 17 November 2017 19:59 CET | Original file | - |
| article xml uploaded. | 17 November 2017 19:58 CET | Original file | https://www.mdpi.com/2071-1050/9/11/2109/xml |
| article pdf uploaded. | 17 November 2017 19:58 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/11/2109/pdf |
| article pdf uploaded. | 16 November 2017 12:14 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/2109/pdf-vor |
