| article html file updated | 30 August 2025 14:13 CEST | Update | https://www.mdpi.com/2079-9721/7/2/36 |
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| article pdf uploaded. | 21 April 2019 16:44 CEST | Version of Record | https://www.mdpi.com/2079-9721/7/2/36/pdf |
| article xml uploaded. | 21 April 2019 16:44 CEST | Update | https://www.mdpi.com/2079-9721/7/2/36/xml |
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