| article html file updated | 22 June 2020 12:40 CEST | Original file | https://www.mdpi.com/2077-1444/11/6/304 |
| article pdf uploaded. | 22 June 2020 12:02 CEST | Version of Record | https://www.mdpi.com/2077-1444/11/6/304/pdf |
| article xml uploaded. | 22 June 2020 12:02 CEST | Update | https://www.mdpi.com/2077-1444/11/6/304/xml |
| article xml file uploaded | 22 June 2020 12:02 CEST | Original file | - |
