| article html file updated | 8 December 2020 03:20 CET | Original file | https://www.mdpi.com/2673-4001/1/3/17 |
| article pdf uploaded. | 7 December 2020 09:53 CET | Updated version of record | https://www.mdpi.com/2673-4001/1/3/17/pdf |
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| article pdf uploaded. | 4 December 2020 13:14 CET | Version of Record | https://www.mdpi.com/2673-4001/1/3/17/pdf-vor |
