| article html file updated | 6 February 2021 09:59 CET | Update | https://www.mdpi.com/1996-1944/14/4/721 |
| article html file updated | 5 February 2021 16:46 CET | Original file | N/A |
| article pdf uploaded. | 5 February 2021 16:44 CET | Updated version of record | https://www.mdpi.com/1996-1944/14/4/721/pdf |
| article xml uploaded. | 5 February 2021 16:44 CET | Update | https://www.mdpi.com/1996-1944/14/4/721/xml |
| article xml file uploaded | 5 February 2021 16:44 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2021 10:39 CET | Version of Record | https://www.mdpi.com/1996-1944/14/4/721/pdf-vor |
