| article html file updated | 1 September 2025 16:50 CEST | Update | https://www.mdpi.com/2227-9091/9/1/4 |
| article html file updated | 23 July 2022 06:53 CEST | Update | - |
| article html file updated | 25 December 2020 07:56 CET | Update | - |
| article pdf uploaded. | 25 December 2020 07:54 CET | Updated version of record | https://www.mdpi.com/2227-9091/9/1/4/pdf |
| article xml uploaded. | 25 December 2020 07:54 CET | Update | https://www.mdpi.com/2227-9091/9/1/4/xml |
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| article html file updated | 23 December 2020 16:30 CET | Original file | - |
| article pdf uploaded. | 23 December 2020 16:29 CET | Version of Record | https://www.mdpi.com/2227-9091/9/1/4/pdf-vor |
| article xml uploaded. | 23 December 2020 16:29 CET | Update | - |
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