| article html file updated | 14 February 2020 00:59 CET | Update | https://www.mdpi.com/1424-8220/19/20/4468 |
| article html file updated | 31 October 2019 00:24 CET | Update | N/A |
| article html file updated | 15 October 2019 12:04 CEST | Original file | N/A |
| article pdf uploaded. | 15 October 2019 12:02 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/20/4468/pdf |
| article xml uploaded. | 15 October 2019 12:02 CEST | Update | https://www.mdpi.com/1424-8220/19/20/4468/xml |
| article xml file uploaded | 15 October 2019 12:02 CEST | Original file | N/A |
