| article html file updated | 18 August 2026 22:37 CEST | Update | https://www.mdpi.com/1999-4907/12/2/220 |
| article html file updated | 1 September 2025 21:38 CEST | Update | N/A |
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| article html file updated | 20 February 2021 09:12 CET | Original file | N/A |
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| article xml uploaded. | 20 February 2021 09:10 CET | Update | https://www.mdpi.com/1999-4907/12/2/220/xml |
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| article pdf uploaded. | 13 February 2021 14:47 CET | Version of Record | https://www.mdpi.com/1999-4907/12/2/220/pdf-vor |
