| article html file updated | 8 October 2020 21:30 CEST | Update | https://www.mdpi.com/2077-1312/8/4/284 |
| article html file updated | 11 May 2020 10:20 CEST | Update | - |
| article html file updated | 22 April 2020 12:39 CEST | Original file | - |
| article pdf uploaded. | 22 April 2020 12:37 CEST | Updated version of record | https://www.mdpi.com/2077-1312/8/4/284/pdf |
| article xml uploaded. | 22 April 2020 12:37 CEST | Update | https://www.mdpi.com/2077-1312/8/4/284/xml |
| article xml file uploaded | 22 April 2020 12:37 CEST | Update | - |
| article xml file uploaded | 15 April 2020 18:22 CEST | Original file | - |
