| article html file updated | 25 December 2025 01:02 CET | Update | https://www.mdpi.com/1424-8220/21/1/81 |
| article html file updated | 1 September 2025 16:59 CEST | Update | - |
| article html file updated | 23 July 2022 07:18 CEST | Update | - |
| article html file updated | 28 December 2020 08:25 CET | Original file | - |
| article pdf uploaded. | 28 December 2020 08:23 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/81/pdf |
| article xml uploaded. | 28 December 2020 08:23 CET | Update | https://www.mdpi.com/1424-8220/21/1/81/xml |
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| article pdf uploaded. | 25 December 2020 10:16 CET | Version of Record | https://www.mdpi.com/1424-8220/21/1/81/pdf-vor |
