| article html file updated | 1 September 2025 13:50 CEST | Update | https://www.mdpi.com/2079-3200/8/4/39 |
| article html file updated | 23 July 2022 01:39 CEST | Update | - |
| article html file updated | 19 November 2020 06:00 CET | Original file | - |
| article pdf uploaded. | 19 November 2020 05:59 CET | Version of Record | https://www.mdpi.com/2079-3200/8/4/39/pdf |
| article xml uploaded. | 19 November 2020 05:59 CET | Update | https://www.mdpi.com/2079-3200/8/4/39/xml |
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