| article html file updated | 2 November 2020 16:16 CET | Original file | https://www.mdpi.com/2076-0787/9/4/133 |
| article pdf uploaded. | 2 November 2020 16:15 CET | Version of Record | https://www.mdpi.com/2076-0787/9/4/133/pdf |
| article xml uploaded. | 2 November 2020 16:15 CET | Update | https://www.mdpi.com/2076-0787/9/4/133/xml |
| article xml file uploaded | 2 November 2020 16:15 CET | Original file | N/A |
