| article html file updated | 31 August 2025 07:01 CEST | Update | https://www.mdpi.com/2220-9964/9/1/6 |
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| article pdf uploaded. | 19 December 2019 16:41 CET | Version of Record | https://www.mdpi.com/2220-9964/9/1/6/pdf-vor |
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