| article html file updated | 31 August 2025 09:30 CEST | Update | https://www.mdpi.com/2413-8851/4/1/5 |
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| article html file updated | 15 February 2020 04:43 CET | Update | - |
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| article pdf uploaded. | 2 February 2020 09:11 CET | Updated version of record | https://www.mdpi.com/2413-8851/4/1/5/pdf |
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| article pdf uploaded. | 20 January 2020 14:23 CET | Version of Record | https://www.mdpi.com/2413-8851/4/1/5/pdf-vor |
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