| article html file updated | 30 August 2025 01:51 CEST | Update | https://www.mdpi.com/2071-1050/9/12/2227 |
| article html file updated | 16 July 2022 07:43 CEST | Update | - |
| article html file updated | 8 February 2020 22:45 CET | Update | - |
| article html file updated | 28 September 2019 21:26 CEST | Update | - |
| article html file updated | 2 May 2019 11:30 CEST | Update | - |
| article html file updated | 18 April 2019 09:07 CEST | Update | - |
| article html file updated | 2 January 2018 17:58 CET | Update | - |
| article html file updated | 2 December 2017 10:02 CET | Original file | - |
| article xml uploaded. | 2 December 2017 10:00 CET | Update | https://www.mdpi.com/2071-1050/9/12/2227/xml |
| article xml uploaded. | 2 December 2017 10:00 CET | Original file | - |
| article pdf uploaded. | 2 December 2017 10:00 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2227/pdf |
| article pdf uploaded. | 1 December 2017 11:50 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2227/pdf-vor |
