| article html file updated | 30 August 2025 20:44 CEST | Update | https://www.mdpi.com/2308-3425/6/2/22 |
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| article pdf uploaded. | 4 June 2019 12:58 CEST | Version of Record | https://www.mdpi.com/2308-3425/6/2/22/pdf |
| article xml uploaded. | 4 June 2019 12:58 CEST | Update | https://www.mdpi.com/2308-3425/6/2/22/xml |
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