| article html file updated | 31 August 2025 00:45 CEST | Update | https://www.mdpi.com/2079-9292/8/9/974 |
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| article pdf uploaded. | 31 August 2019 12:02 CEST | Version of Record | https://www.mdpi.com/2079-9292/8/9/974/pdf |
| article xml uploaded. | 31 August 2019 12:02 CEST | Update | https://www.mdpi.com/2079-9292/8/9/974/xml |
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