| article html file updated | 1 September 2025 19:29 CEST | Update | https://www.mdpi.com/2311-5521/6/2/50 |
| article html file updated | 23 July 2022 23:54 CEST | Update | - |
| article html file updated | 25 January 2021 07:33 CET | Update | - |
| article pdf uploaded. | 25 January 2021 07:32 CET | Updated version of record | https://www.mdpi.com/2311-5521/6/2/50/pdf |
| article xml uploaded. | 25 January 2021 07:32 CET | Update | https://www.mdpi.com/2311-5521/6/2/50/xml |
| article xml file uploaded | 25 January 2021 07:32 CET | Update | - |
| article html file updated | 22 January 2021 19:00 CET | Original file | - |
| article pdf uploaded. | 22 January 2021 18:58 CET | Version of Record | https://www.mdpi.com/2311-5521/6/2/50/pdf-vor |
| article xml uploaded. | 22 January 2021 18:58 CET | Update | - |
| article xml file uploaded | 22 January 2021 18:58 CET | Original file | - |
