| article html file updated | 30 August 2025 14:15 CEST | Update | https://www.mdpi.com/2079-4991/9/4/647 |
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| article pdf uploaded. | 22 April 2019 13:20 CEST | Version of Record | https://www.mdpi.com/2079-4991/9/4/647/pdf |
| article xml uploaded. | 22 April 2019 13:20 CEST | Update | https://www.mdpi.com/2079-4991/9/4/647/xml |
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