| article html file updated | 14 May 2020 04:10 CEST | Update | https://www.mdpi.com/1424-8220/20/9/2456 |
| article pdf uploaded. | 14 May 2020 04:07 CEST | Updated version of record | https://www.mdpi.com/1424-8220/20/9/2456/pdf |
| article xml uploaded. | 14 May 2020 04:07 CEST | Update | https://www.mdpi.com/1424-8220/20/9/2456/xml |
| article xml file uploaded | 14 May 2020 04:07 CEST | Update | N/A |
| article html file updated | 29 April 2020 04:35 CEST | Original file | N/A |
| article pdf uploaded. | 29 April 2020 04:33 CEST | Updated version of record | https://www.mdpi.com/1424-8220/20/9/2456/pdf-vor |
| article xml file uploaded | 29 April 2020 04:33 CEST | Update | N/A |
| article pdf uploaded. | 26 April 2020 11:58 CEST | Version of Record | https://www.mdpi.com/1424-8220/20/9/2456/pdf-vor |
| article xml file uploaded | 26 April 2020 11:58 CEST | Original file | N/A |
