| article html file updated | 1 September 2025 19:47 CEST | Update | https://www.mdpi.com/1999-4907/12/2/138 |
| article html file updated | 24 July 2022 03:09 CEST | Update | - |
| article html file updated | 2 February 2021 10:36 CET | Update | - |
| article pdf uploaded. | 2 February 2021 10:34 CET | Updated version of record | https://www.mdpi.com/1999-4907/12/2/138/pdf |
| article xml uploaded. | 2 February 2021 10:34 CET | Update | https://www.mdpi.com/1999-4907/12/2/138/xml |
| article xml file uploaded | 2 February 2021 10:34 CET | Update | - |
| article html file updated | 26 January 2021 16:44 CET | Original file | - |
| article pdf uploaded. | 26 January 2021 16:43 CET | Version of Record | https://www.mdpi.com/1999-4907/12/2/138/pdf-vor |
| article xml uploaded. | 26 January 2021 16:43 CET | Update | - |
| article xml file uploaded | 26 January 2021 16:43 CET | Original file | - |
