| article html file updated | 13 November 2020 08:01 CET | Original file | https://www.mdpi.com/2076-0787/9/4/136 |
| article pdf uploaded. | 13 November 2020 07:59 CET | Version of Record | https://www.mdpi.com/2076-0787/9/4/136/pdf |
| article xml uploaded. | 13 November 2020 07:59 CET | Update | https://www.mdpi.com/2076-0787/9/4/136/xml |
| article xml file uploaded | 13 November 2020 07:59 CET | Original file | - |
