| article html file updated | 23 November 2020 08:12 CET | Original file | https://www.mdpi.com/1424-8220/20/22/6688 |
| article pdf uploaded. | 23 November 2020 08:11 CET | Version of Record | https://www.mdpi.com/1424-8220/20/22/6688/pdf |
| article xml uploaded. | 23 November 2020 08:11 CET | Update | https://www.mdpi.com/1424-8220/20/22/6688/xml |
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