| article html file updated | 1 September 2025 16:56 CEST | Update | https://www.mdpi.com/1999-4923/13/1/21 |
| article html file updated | 23 July 2022 07:09 CEST | Update | - |
| article html file updated | 27 December 2020 09:59 CET | Update | - |
| article html file updated | 26 December 2020 10:09 CET | Original file | - |
| article pdf uploaded. | 26 December 2020 10:08 CET | Updated version of record | https://www.mdpi.com/1999-4923/13/1/21/pdf |
| article xml uploaded. | 26 December 2020 10:08 CET | Update | https://www.mdpi.com/1999-4923/13/1/21/xml |
| article xml file uploaded | 26 December 2020 10:08 CET | Original file | - |
| article pdf uploaded. | 24 December 2020 14:31 CET | Version of Record | https://www.mdpi.com/1999-4923/13/1/21/pdf-vor |
