| article html file updated | 31 August 2025 06:52 CEST | Update | https://www.mdpi.com/2071-1050/12/1/20 |
| article html file updated | 19 July 2022 21:23 CEST | Update | - |
| article html file updated | 23 February 2021 03:20 CET | Update | - |
| article xml uploaded. | 23 February 2021 03:19 CET | Update | https://www.mdpi.com/2071-1050/12/1/20/xml |
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| article pdf uploaded. | 23 February 2021 03:19 CET | Updated version of record | https://www.mdpi.com/2071-1050/12/1/20/pdf |
| article html file updated | 14 February 2020 19:45 CET | Update | - |
| article html file updated | 18 December 2019 13:39 CET | Original file | - |
| article pdf uploaded. | 18 December 2019 13:37 CET | Version of Record | https://www.mdpi.com/2071-1050/12/1/20/pdf-vor |
| article xml uploaded. | 18 December 2019 13:37 CET | Update | - |
| article xml file uploaded | 18 December 2019 13:37 CET | Original file | - |
