| article html file updated | 1 September 2025 16:53 CEST | Update | https://www.mdpi.com/1424-8220/21/1/50 |
| article html file updated | 23 July 2022 07:00 CEST | Update | - |
| article html file updated | 26 December 2020 11:52 CET | Original file | - |
| article pdf uploaded. | 26 December 2020 11:51 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/50/pdf |
| article xml uploaded. | 26 December 2020 11:51 CET | Update | https://www.mdpi.com/1424-8220/21/1/50/xml |
| article xml file uploaded | 26 December 2020 11:51 CET | Original file | - |
| article supplementary file uploaded. | 24 December 2020 10:43 CET | - | https://www.mdpi.com/1424-8220/21/1/50#supplementary |
| article pdf uploaded. | 24 December 2020 10:43 CET | Version of Record | https://www.mdpi.com/1424-8220/21/1/50/pdf-vor |