| article html file updated | 1 April 2020 19:30 CEST | Update | https://www.mdpi.com/1424-8220/20/6/1745 |
| article html file updated | 21 March 2020 05:41 CET | Original file | - |
| article pdf uploaded. | 21 March 2020 05:40 CET | Version of Record | https://www.mdpi.com/1424-8220/20/6/1745/pdf |
| article xml uploaded. | 21 March 2020 05:40 CET | Update | https://www.mdpi.com/1424-8220/20/6/1745/xml |
| article xml file uploaded | 21 March 2020 05:40 CET | Original file | - |
