| article html file updated | 18 April 2020 12:28 CEST | Original file | https://www.mdpi.com/1424-8220/20/8/2321 |
| article pdf uploaded. | 18 April 2020 12:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/20/8/2321/pdf |
| article xml uploaded. | 18 April 2020 12:27 CEST | Update | https://www.mdpi.com/1424-8220/20/8/2321/xml |
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