| article html file updated | 17 March 2021 09:31 CET | Original file | https://www.mdpi.com/1424-8220/21/6/2045 |
| article pdf uploaded. | 17 March 2021 09:29 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/6/2045/pdf |
| article xml uploaded. | 17 March 2021 09:29 CET | Update | https://www.mdpi.com/1424-8220/21/6/2045/xml |
| article xml file uploaded | 17 March 2021 09:29 CET | Original file | N/A |
| article pdf uploaded. | 15 March 2021 02:50 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/6/2045/pdf-vor |
| article pdf uploaded. | 14 March 2021 10:59 CET | Version of Record | https://www.mdpi.com/1424-8220/21/6/2045/pdf-vor |
