| article html file updated | 24 December 2025 19:31 CET | Update | https://www.mdpi.com/2079-7737/9/6/137 |
| article html file updated | 1 September 2025 00:45 CEST | Update | N/A |
| article html file updated | 21 July 2022 22:03 CEST | Update | N/A |
| article html file updated | 9 October 2020 09:49 CEST | Update | N/A |
| article html file updated | 29 June 2020 10:32 CEST | Original file | N/A |
| article pdf uploaded. | 29 June 2020 10:30 CEST | Updated version of record | https://www.mdpi.com/2079-7737/9/6/137/pdf |
| article xml uploaded. | 29 June 2020 10:30 CEST | Update | https://www.mdpi.com/2079-7737/9/6/137/xml |
| article xml file uploaded | 29 June 2020 10:30 CEST | Original file | N/A |
| article pdf uploaded. | 25 June 2020 13:59 CEST | Version of Record | https://www.mdpi.com/2079-7737/9/6/137/pdf-vor |
