| article html file updated | 31 August 2025 08:35 CEST | Update | https://www.mdpi.com/1999-4893/13/1/21 |
| article html file updated | 19 July 2022 19:45 CEST | Update | - |
| article html file updated | 15 February 2020 01:27 CET | Update | - |
| article html file updated | 19 January 2020 10:35 CET | Original file | - |
| article pdf uploaded. | 19 January 2020 10:34 CET | Updated version of record | https://www.mdpi.com/1999-4893/13/1/21/pdf |
| article xml uploaded. | 19 January 2020 10:34 CET | Update | https://www.mdpi.com/1999-4893/13/1/21/xml |
| article xml file uploaded | 19 January 2020 10:34 CET | Update | - |
| article pdf uploaded. | 9 January 2020 12:42 CET | Version of Record | https://www.mdpi.com/1999-4893/13/1/21/pdf-vor |
| article xml file uploaded | 9 January 2020 12:42 CET | Original file | - |
