| article html file updated | 31 August 2025 07:01 CEST | Update | https://www.mdpi.com/2073-4409/9/1/20 |
| article html file updated | 19 July 2022 21:15 CEST | Update | N/A |
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| article pdf uploaded. | 28 December 2019 09:37 CET | Updated version of record | https://www.mdpi.com/2073-4409/9/1/20/pdf |
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| article pdf uploaded. | 19 December 2019 15:53 CET | Version of Record | https://www.mdpi.com/2073-4409/9/1/20/pdf-vor |
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