| article html file updated | 1 September 2025 10:15 CEST | Update | https://www.mdpi.com/2075-1702/8/4/60 |
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| article html file updated | 4 December 2020 04:13 CET | Update | - |
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| article pdf uploaded. | 4 November 2020 10:36 CET | Updated version of record | https://www.mdpi.com/2075-1702/8/4/60/pdf |
| article xml uploaded. | 4 November 2020 10:36 CET | Update | https://www.mdpi.com/2075-1702/8/4/60/xml |
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| article pdf uploaded. | 7 October 2020 09:28 CEST | Version of Record | https://www.mdpi.com/2075-1702/8/4/60/pdf-vor |
