| article html file updated | 30 August 2025 01:11 CEST | Update | https://www.mdpi.com/1424-8220/17/9/2109 |
| article html file updated | 16 July 2022 06:20 CEST | Update | N/A |
| article html file updated | 8 February 2020 16:11 CET | Update | N/A |
| article html file updated | 27 September 2019 03:26 CEST | Update | N/A |
| article html file updated | 3 May 2019 02:00 CEST | Update | N/A |
| article html file updated | 30 September 2017 15:03 CEST | Update | N/A |
| article html file updated | 14 September 2017 12:01 CEST | Original file | N/A |
| article xml uploaded. | 14 September 2017 12:00 CEST | Update | https://www.mdpi.com/1424-8220/17/9/2109/xml |
| article xml uploaded. | 14 September 2017 12:00 CEST | Original file | N/A |
| article pdf uploaded. | 14 September 2017 12:00 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2109/pdf |