| article html file updated | 31 August 2025 09:24 CEST | Update | https://www.mdpi.com/2075-4663/8/1/9 |
| article html file updated | 20 July 2022 17:55 CEST | Update | N/A |
| article html file updated | 15 February 2020 04:19 CET | Update | N/A |
| article html file updated | 5 February 2020 20:16 CET | Update | N/A |
| article html file updated | 19 January 2020 09:39 CET | Original file | N/A |
| article pdf uploaded. | 19 January 2020 09:38 CET | Version of Record | https://www.mdpi.com/2075-4663/8/1/9/pdf |
| article xml uploaded. | 19 January 2020 09:38 CET | Update | https://www.mdpi.com/2075-4663/8/1/9/xml |
| article xml file uploaded | 19 January 2020 09:38 CET | Original file | N/A |
