| article html file updated | 30 August 2025 21:15 CEST | Update | https://www.mdpi.com/2079-9268/9/2/19 |
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| article pdf uploaded. | 17 June 2019 12:59 CEST | Version of Record | https://www.mdpi.com/2079-9268/9/2/19/pdf |
| article xml uploaded. | 17 June 2019 12:59 CEST | Update | https://www.mdpi.com/2079-9268/9/2/19/xml |
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