| article html file updated | 30 August 2025 21:54 CEST | Update | https://www.mdpi.com/2073-4468/8/3/39 |
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| article pdf uploaded. | 1 July 2019 09:29 CEST | Version of Record | https://www.mdpi.com/2073-4468/8/3/39/pdf |
| article xml uploaded. | 1 July 2019 09:29 CEST | Update | https://www.mdpi.com/2073-4468/8/3/39/xml |
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