| article html file updated | 1 September 2025 16:57 CEST | Update | https://www.mdpi.com/1424-8220/21/1/69 |
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| article pdf uploaded. | 8 January 2021 01:42 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/69/pdf |
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| article pdf uploaded. | 26 December 2020 10:58 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/69/pdf-vor |
| article xml uploaded. | 26 December 2020 10:58 CET | Update | - |
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| article pdf uploaded. | 24 December 2020 16:08 CET | Version of Record | https://www.mdpi.com/1424-8220/21/1/69/pdf-vor |