| article html file updated | 1 September 2025 20:20 CEST | Update | https://www.mdpi.com/2412-3811/6/2/21 |
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| article pdf uploaded. | 2 February 2021 03:00 CET | Updated version of record | https://www.mdpi.com/2412-3811/6/2/21/pdf |
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| article html file updated | 1 February 2021 08:55 CET | Original file | - |
| article pdf uploaded. | 1 February 2021 08:54 CET | Version of Record | https://www.mdpi.com/2412-3811/6/2/21/pdf-vor |
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