| article html file updated | 25 December 2025 03:26 CET | Update | https://www.mdpi.com/2227-9067/8/2/105 |
| article html file updated | 1 September 2025 20:42 CEST | Update | - |
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| article html file updated | 5 February 2021 10:06 CET | Update | - |
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| article pdf uploaded. | 5 February 2021 03:59 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/2/105/pdf |
| article xml uploaded. | 5 February 2021 03:59 CET | Update | https://www.mdpi.com/2227-9067/8/2/105/xml |
| article xml file uploaded | 5 February 2021 03:59 CET | Original file | - |
| article pdf uploaded. | 4 February 2021 11:54 CET | Version of Record | https://www.mdpi.com/2227-9067/8/2/105/pdf-vor |
