| article html file updated | 22 June 2021 08:02 CEST | Original file | https://www.mdpi.com/2078-2489/12/7/257 |
| article pdf uploaded. | 22 June 2021 08:01 CEST | Version of Record | https://www.mdpi.com/2078-2489/12/7/257/pdf |
| article xml uploaded. | 22 June 2021 08:01 CEST | Update | https://www.mdpi.com/2078-2489/12/7/257/xml |
| article xml file uploaded | 22 June 2021 08:01 CEST | Original file | N/A |
