| article html file updated | 30 August 2025 10:43 CEST | Update | https://www.mdpi.com/2571-9637/2/1/3 |
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| article pdf uploaded. | 8 January 2019 10:25 CET | Version of Record | https://www.mdpi.com/2571-9637/2/1/3/pdf |
| article xml uploaded. | 8 January 2019 10:25 CET | Update | https://www.mdpi.com/2571-9637/2/1/3/xml |
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