| article html file updated | 1 September 2025 16:54 CEST | Update | https://www.mdpi.com/1424-8220/21/1/56 |
| article html file updated | 23 July 2022 07:04 CEST | Update | - |
| article html file updated | 25 December 2020 08:05 CET | Original file | - |
| article pdf uploaded. | 25 December 2020 08:03 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/56/pdf |
| article xml uploaded. | 25 December 2020 08:03 CET | Update | https://www.mdpi.com/1424-8220/21/1/56/xml |
| article xml file uploaded | 25 December 2020 08:03 CET | Original file | - |
| article pdf uploaded. | 25 December 2020 03:29 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/56/pdf-vor |
| article pdf uploaded. | 24 December 2020 12:23 CET | Version of Record | https://www.mdpi.com/1424-8220/21/1/56/pdf-vor |
