| article html file updated | 1 April 2020 19:16 CEST | Update | https://www.mdpi.com/1424-8220/20/6/1706 |
| article html file updated | 19 March 2020 07:34 CET | Original file | - |
| article pdf uploaded. | 19 March 2020 07:33 CET | Version of Record | https://www.mdpi.com/1424-8220/20/6/1706/pdf |
| article xml uploaded. | 19 March 2020 07:33 CET | Update | https://www.mdpi.com/1424-8220/20/6/1706/xml |
| article xml file uploaded | 19 March 2020 07:33 CET | Original file | - |
