| article html file updated | 9 February 2021 14:18 CET | Original file | https://www.mdpi.com/2073-4360/13/4/519 |
| article pdf uploaded. | 9 February 2021 14:16 CET | Version of Record | https://www.mdpi.com/2073-4360/13/4/519/pdf |
| article xml uploaded. | 9 February 2021 14:16 CET | Update | https://www.mdpi.com/2073-4360/13/4/519/xml |
| article xml file uploaded | 9 February 2021 14:16 CET | Original file | N/A |
