| article html file updated | 21 June 2020 11:47 CEST | Original file | https://www.mdpi.com/2077-1444/11/6/301 |
| article pdf uploaded. | 21 June 2020 11:46 CEST | Version of Record | https://www.mdpi.com/2077-1444/11/6/301/pdf |
| article xml uploaded. | 21 June 2020 11:46 CEST | Update | https://www.mdpi.com/2077-1444/11/6/301/xml |
| article xml file uploaded | 21 June 2020 11:46 CEST | Original file | N/A |
