| article html file updated | 1 September 2025 17:26 CEST | Update | https://www.mdpi.com/2218-6581/10/1/6 |
| article html file updated | 23 July 2022 08:55 CEST | Update | - |
| article html file updated | 6 January 2021 09:05 CET | Update | - |
| article pdf uploaded. | 6 January 2021 09:03 CET | Updated version of record | https://www.mdpi.com/2218-6581/10/1/6/pdf |
| article xml uploaded. | 6 January 2021 09:03 CET | Update | https://www.mdpi.com/2218-6581/10/1/6/xml |
| article xml file uploaded | 6 January 2021 09:03 CET | Update | - |
| article html file updated | 31 December 2020 07:28 CET | Update | - |
| article pdf uploaded. | 31 December 2020 07:27 CET | Updated version of record | https://www.mdpi.com/2218-6581/10/1/6/pdf-vor |
| article xml uploaded. | 31 December 2020 07:27 CET | Update | - |
| article xml file uploaded | 31 December 2020 07:27 CET | Update | - |
| article html file updated | 31 December 2020 07:03 CET | Original file | - |
| article pdf uploaded. | 31 December 2020 07:02 CET | Version of Record | https://www.mdpi.com/2218-6581/10/1/6/pdf-vor |
| article xml uploaded. | 31 December 2020 07:02 CET | Update | - |
| article xml file uploaded | 31 December 2020 07:02 CET | Original file | - |
