| article html file updated | 8 February 2020 20:16 CET | Update | https://www.mdpi.com/2071-1050/9/11/2021 |
| article html file updated | 28 September 2019 05:17 CEST | Update | N/A |
| article html file updated | 2 May 2019 17:07 CEST | Update | N/A |
| article html file updated | 30 November 2017 12:38 CET | Update | N/A |
| article html file updated | 4 November 2017 11:03 CET | Original file | N/A |
| article xml uploaded. | 4 November 2017 11:02 CET | Original file | https://www.mdpi.com/2071-1050/9/11/2021/xml |
| article pdf uploaded. | 4 November 2017 11:02 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/11/2021/pdf |
| article pdf uploaded. | 3 November 2017 11:23 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/2021/pdf-vor |
