| article html file updated | 31 July 2021 17:20 CEST | Original file | https://www.mdpi.com/2079-9292/10/15/1839 |
| article pdf uploaded. | 31 July 2021 17:18 CEST | Updated version of record | https://www.mdpi.com/2079-9292/10/15/1839/pdf |
| article xml uploaded. | 31 July 2021 17:18 CEST | Update | https://www.mdpi.com/2079-9292/10/15/1839/xml |
| article xml file uploaded | 31 July 2021 17:18 CEST | Original file | N/A |
