| article html file updated | 31 August 2025 13:44 CEST | Update | https://www.mdpi.com/2073-4468/9/1/6 |
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| article html file updated | 2 April 2020 12:20 CEST | Update | - |
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| article pdf uploaded. | 27 March 2020 10:33 CET | Updated version of record | https://www.mdpi.com/2073-4468/9/1/6/pdf |
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| article pdf uploaded. | 6 March 2020 14:46 CET | Version of Record | https://www.mdpi.com/2073-4468/9/1/6/pdf-vor |
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