| article html file updated | 4 February 2021 15:24 CET | Original file | https://www.mdpi.com/2072-6694/13/4/623 |
| article pdf uploaded. | 4 February 2021 15:23 CET | Version of Record | https://www.mdpi.com/2072-6694/13/4/623/pdf |
| article xml uploaded. | 4 February 2021 15:23 CET | Update | https://www.mdpi.com/2072-6694/13/4/623/xml |
| article xml file uploaded | 4 February 2021 15:23 CET | Original file | N/A |
