| article html file updated | 15 January 2021 09:07 CET | Original file | https://www.mdpi.com/2077-1444/12/1/57 |
| article pdf uploaded. | 15 January 2021 09:06 CET | Version of Record | https://www.mdpi.com/2077-1444/12/1/57/pdf |
| article xml uploaded. | 15 January 2021 09:06 CET | Update | https://www.mdpi.com/2077-1444/12/1/57/xml |
| article xml file uploaded | 15 January 2021 09:06 CET | Original file | N/A |
