| article html file updated | 8 January 2021 11:29 CET | Original file | https://www.mdpi.com/2077-1444/12/1/39 |
| article pdf uploaded. | 8 January 2021 11:28 CET | Version of Record | https://www.mdpi.com/2077-1444/12/1/39/pdf |
| article xml uploaded. | 8 January 2021 11:28 CET | Update | https://www.mdpi.com/2077-1444/12/1/39/xml |
| article xml file uploaded | 8 January 2021 11:28 CET | Original file | N/A |
