| article html file updated | 13 February 2021 10:17 CET | Original file | https://www.mdpi.com/2071-1050/13/4/2012 |
| article pdf uploaded. | 13 February 2021 10:15 CET | Version of Record | https://www.mdpi.com/2071-1050/13/4/2012/pdf |
| article xml uploaded. | 13 February 2021 10:15 CET | Update | https://www.mdpi.com/2071-1050/13/4/2012/xml |
| article xml file uploaded | 13 February 2021 10:15 CET | Original file | N/A |
