| article html file updated | 31 August 2025 12:36 CEST | Update | https://www.mdpi.com/2304-6732/7/1/20 |
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| article pdf uploaded. | 24 February 2020 16:28 CET | Version of Record | https://www.mdpi.com/2304-6732/7/1/20/pdf-vor |
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