| article html file updated | 31 August 2025 08:36 CEST | Update | https://www.mdpi.com/1999-4923/12/1/55 |
| article html file updated | 19 July 2022 19:43 CEST | Update | - |
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| article pdf uploaded. | 21 January 2020 12:19 CET | Updated version of record | https://www.mdpi.com/1999-4923/12/1/55/pdf |
| article xml uploaded. | 21 January 2020 12:19 CET | Update | https://www.mdpi.com/1999-4923/12/1/55/xml |
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| article pdf uploaded. | 9 January 2020 15:29 CET | Version of Record | https://www.mdpi.com/1999-4923/12/1/55/pdf-vor |
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