| article html file updated | 8 May 2020 19:38 CEST | Update | https://www.mdpi.com/2077-1444/11/4/209 |
| article html file updated | 24 April 2020 09:18 CEST | Update | N/A |
| article pdf uploaded. | 24 April 2020 09:17 CEST | Updated version of record | https://www.mdpi.com/2077-1444/11/4/209/pdf |
| article xml uploaded. | 24 April 2020 09:17 CEST | Update | https://www.mdpi.com/2077-1444/11/4/209/xml |
| article xml file uploaded | 24 April 2020 09:17 CEST | Update | N/A |
| article html file updated | 22 April 2020 19:28 CEST | Original file | N/A |
| article pdf uploaded. | 22 April 2020 19:27 CEST | Version of Record | https://www.mdpi.com/2077-1444/11/4/209/pdf-vor |
| article xml file uploaded | 22 April 2020 19:27 CEST | Original file | N/A |
