| article html file updated | 23 June 2020 08:32 CEST | Original file | https://www.mdpi.com/2077-1444/11/6/307 |
| article pdf uploaded. | 23 June 2020 08:31 CEST | Version of Record | https://www.mdpi.com/2077-1444/11/6/307/pdf |
| article xml uploaded. | 23 June 2020 08:31 CEST | Update | https://www.mdpi.com/2077-1444/11/6/307/xml |
| article xml file uploaded | 23 June 2020 08:31 CEST | Original file | - |
