| article html file updated | 31 August 2025 19:20 CEST | Update | https://www.mdpi.com/2079-3200/8/2/20 |
| article html file updated | 21 July 2022 03:46 CEST | Update | - |
| article html file updated | 6 May 2020 04:19 CEST | Update | - |
| article pdf uploaded. | 6 May 2020 04:18 CEST | Updated version of record | https://www.mdpi.com/2079-3200/8/2/20/pdf |
| article xml uploaded. | 6 May 2020 04:18 CEST | Update | https://www.mdpi.com/2079-3200/8/2/20/xml |
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| article pdf uploaded. | 3 May 2020 06:43 CEST | Updated version of record | https://www.mdpi.com/2079-3200/8/2/20/pdf-vor |
| article xml file uploaded | 3 May 2020 06:43 CEST | Update | - |
| article pdf uploaded. | 3 May 2020 06:42 CEST | Version of Record | https://www.mdpi.com/2079-3200/8/2/20/pdf-vor |
| article xml file uploaded | 3 May 2020 06:42 CEST | Original file | - |
