| article html file updated | 30 August 2025 14:11 CEST | Update | https://www.mdpi.com/2413-8851/3/2/44 |
| article html file updated | 19 July 2022 17:43 CEST | Update | - |
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| article pdf uploaded. | 19 April 2019 14:58 CEST | Version of Record | https://www.mdpi.com/2413-8851/3/2/44/pdf |
| article xml uploaded. | 19 April 2019 14:58 CEST | Update | https://www.mdpi.com/2413-8851/3/2/44/xml |
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