| article html file updated | 10 February 2021 11:01 CET | Original file | https://www.mdpi.com/2075-4701/11/2/306 |
| article pdf uploaded. | 10 February 2021 10:59 CET | Version of Record | https://www.mdpi.com/2075-4701/11/2/306/pdf |
| article xml uploaded. | 10 February 2021 10:59 CET | Update | https://www.mdpi.com/2075-4701/11/2/306/xml |
| article xml file uploaded | 10 February 2021 10:59 CET | Original file | N/A |
