| article html file updated | 2 September 2025 08:34 CEST | Update | https://www.mdpi.com/2227-9717/9/6/921 |
| article html file updated | 26 July 2022 21:03 CEST | Update | - |
| article html file updated | 27 May 2021 05:32 CEST | Update | - |
| article pdf uploaded. | 27 May 2021 05:30 CEST | Updated version of record | https://www.mdpi.com/2227-9717/9/6/921/pdf |
| article xml uploaded. | 27 May 2021 05:30 CEST | Update | https://www.mdpi.com/2227-9717/9/6/921/xml |
| article xml file uploaded | 27 May 2021 05:30 CEST | Update | - |
| article html file updated | 24 May 2021 13:35 CEST | Original file | - |
| article pdf uploaded. | 24 May 2021 13:33 CEST | Version of Record | https://www.mdpi.com/2227-9717/9/6/921/pdf-vor |
| article xml file uploaded | 24 May 2021 13:33 CEST | Original file | - |
