| article html file updated | 31 August 2025 22:43 CEST | Update | https://www.mdpi.com/1999-4907/11/6/640 |
| article html file updated | 21 July 2022 07:08 CEST | Update | - |
| article html file updated | 23 June 2020 11:38 CEST | Original file | - |
| article pdf uploaded. | 23 June 2020 11:37 CEST | Updated version of record | https://www.mdpi.com/1999-4907/11/6/640/pdf |
| article xml uploaded. | 23 June 2020 11:37 CEST | Update | https://www.mdpi.com/1999-4907/11/6/640/xml |
| article xml file uploaded | 23 June 2020 11:37 CEST | Original file | - |
| article pdf uploaded. | 5 June 2020 11:54 CEST | Version of Record | https://www.mdpi.com/1999-4907/11/6/640/pdf-vor |
