| article html file updated | 30 July 2022 10:01 CEST | Update | https://www.mdpi.com/2199-8531/7/4/214 |
| article html file updated | 14 October 2021 10:10 CEST | Update | - |
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| article pdf uploaded. | 14 October 2021 08:49 CEST | Updated version of record | https://www.mdpi.com/2199-8531/7/4/214/pdf |
| article xml uploaded. | 14 October 2021 08:49 CEST | Update | https://www.mdpi.com/2199-8531/7/4/214/xml |
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| article pdf uploaded. | 9 October 2021 14:38 CEST | Version of Record | https://www.mdpi.com/2199-8531/7/4/214/pdf-vor |
