| article html file updated | 30 August 2025 21:57 CEST | Update | https://www.mdpi.com/2414-4088/3/3/47 |
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| article pdf uploaded. | 2 July 2019 11:55 CEST | Version of Record | https://www.mdpi.com/2414-4088/3/3/47/pdf |
| article xml uploaded. | 2 July 2019 11:55 CEST | Update | https://www.mdpi.com/2414-4088/3/3/47/xml |
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